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class FrozenDict(OrderedDict):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
for key, value in self.items():
setattr(self, key, value)
self.__frozen = True
def __delitem__(self, *args, **kwargs):
raise Exception(f"You cannot use ``__delitem__`` on a {self.__class__.__name__} instance.")
def setdefault(self, *args, **kwargs):
raise Exception(f"You cannot use ``setdefault`` on a {self.__class__.__name__} instance.")
def pop(self, *args, **kwargs):
raise Exception(f"You cannot use ``pop`` on a {self.__class__.__name__} instance.")
def update(self, *args, **kwargs):
raise Exception(f"You cannot use ``update`` on a {self.__class__.__name__} instance.")
def __setattr__(self, name, value):
if hasattr(self, "__frozen") and self.__frozen:
raise Exception(f"You cannot use ``__setattr__`` on a {self.__class__.__name__} instance.")
super().__setattr__(name, value) | 0 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
def __setitem__(self, name, value):
if hasattr(self, "__frozen") and self.__frozen:
raise Exception(f"You cannot use ``__setattr__`` on a {self.__class__.__name__} instance.")
super().__setitem__(name, value) | 0 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
class ConfigMixin:
r"""
Base class for all configuration classes. All configuration parameters are stored under `self.config`. Also
provides the [`~ConfigMixin.from_config`] and [`~ConfigMixin.save_config`] methods for loading, downloading, and
saving classes that inherit from [`ConfigMixin`]. | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
Class attributes:
- **config_name** (`str`) -- A filename under which the config should stored when calling
[`~ConfigMixin.save_config`] (should be overridden by parent class).
- **ignore_for_config** (`List[str]`) -- A list of attributes that should not be saved in the config (should be
overridden by subclass).
- **has_compatibles** (`bool`) -- Whether the class has compatible classes (should be overridden by subclass).
- **_deprecated_kwargs** (`List[str]`) -- Keyword arguments that are deprecated. Note that the `init` function
should only have a `kwargs` argument if at least one argument is deprecated (should be overridden by
subclass).
"""
config_name = None
ignore_for_config = []
has_compatibles = False
_deprecated_kwargs = [] | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
def register_to_config(self, **kwargs):
if self.config_name is None:
raise NotImplementedError(f"Make sure that {self.__class__} has defined a class name `config_name`")
# Special case for `kwargs` used in deprecation warning added to schedulers
# TODO: remove this when we remove the deprecation warning, and the `kwargs` argument,
# or solve in a more general way.
kwargs.pop("kwargs", None)
if not hasattr(self, "_internal_dict"):
internal_dict = kwargs
else:
previous_dict = dict(self._internal_dict)
internal_dict = {**self._internal_dict, **kwargs}
logger.debug(f"Updating config from {previous_dict} to {internal_dict}")
self._internal_dict = FrozenDict(internal_dict) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
def __getattr__(self, name: str) -> Any:
"""The only reason we overwrite `getattr` here is to gracefully deprecate accessing
config attributes directly. See https://github.com/huggingface/diffusers/pull/3129
This function is mostly copied from PyTorch's __getattr__ overwrite:
https://pytorch.org/docs/stable/_modules/torch/nn/modules/module.html#Module
"""
is_in_config = "_internal_dict" in self.__dict__ and hasattr(self.__dict__["_internal_dict"], name)
is_attribute = name in self.__dict__
if is_in_config and not is_attribute:
deprecation_message = f"Accessing config attribute `{name}` directly via '{type(self).__name__}' object attribute is deprecated. Please access '{name}' over '{type(self).__name__}'s config object instead, e.g. 'scheduler.config.{name}'."
deprecate("direct config name access", "1.0.0", deprecation_message, standard_warn=False)
return self._internal_dict[name] | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
raise AttributeError(f"'{type(self).__name__}' object has no attribute '{name}'")
def save_config(self, save_directory: Union[str, os.PathLike], push_to_hub: bool = False, **kwargs):
"""
Save a configuration object to the directory specified in `save_directory` so that it can be reloaded using the
[`~ConfigMixin.from_config`] class method. | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
Args:
save_directory (`str` or `os.PathLike`):
Directory where the configuration JSON file is saved (will be created if it does not exist).
push_to_hub (`bool`, *optional*, defaults to `False`):
Whether or not to push your model to the Hugging Face Hub after saving it. You can specify the
repository you want to push to with `repo_id` (will default to the name of `save_directory` in your
namespace).
kwargs (`Dict[str, Any]`, *optional*):
Additional keyword arguments passed along to the [`~utils.PushToHubMixin.push_to_hub`] method.
"""
if os.path.isfile(save_directory):
raise AssertionError(f"Provided path ({save_directory}) should be a directory, not a file")
os.makedirs(save_directory, exist_ok=True) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
# If we save using the predefined names, we can load using `from_config`
output_config_file = os.path.join(save_directory, self.config_name)
self.to_json_file(output_config_file)
logger.info(f"Configuration saved in {output_config_file}")
if push_to_hub:
commit_message = kwargs.pop("commit_message", None)
private = kwargs.pop("private", None)
create_pr = kwargs.pop("create_pr", False)
token = kwargs.pop("token", None)
repo_id = kwargs.pop("repo_id", save_directory.split(os.path.sep)[-1])
repo_id = create_repo(repo_id, exist_ok=True, private=private, token=token).repo_id
self._upload_folder(
save_directory,
repo_id,
token=token,
commit_message=commit_message,
create_pr=create_pr,
) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
@classmethod
def from_config(cls, config: Union[FrozenDict, Dict[str, Any]] = None, return_unused_kwargs=False, **kwargs):
r"""
Instantiate a Python class from a config dictionary.
Parameters:
config (`Dict[str, Any]`):
A config dictionary from which the Python class is instantiated. Make sure to only load configuration
files of compatible classes.
return_unused_kwargs (`bool`, *optional*, defaults to `False`):
Whether kwargs that are not consumed by the Python class should be returned or not.
kwargs (remaining dictionary of keyword arguments, *optional*):
Can be used to update the configuration object (after it is loaded) and initiate the Python class.
`**kwargs` are passed directly to the underlying scheduler/model's `__init__` method and eventually
overwrite the same named arguments in `config`. | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
Returns:
[`ModelMixin`] or [`SchedulerMixin`]:
A model or scheduler object instantiated from a config dictionary.
Examples:
```python
>>> from diffusers import DDPMScheduler, DDIMScheduler, PNDMScheduler
>>> # Download scheduler from huggingface.co and cache.
>>> scheduler = DDPMScheduler.from_pretrained("google/ddpm-cifar10-32")
>>> # Instantiate DDIM scheduler class with same config as DDPM
>>> scheduler = DDIMScheduler.from_config(scheduler.config)
>>> # Instantiate PNDM scheduler class with same config as DDPM
>>> scheduler = PNDMScheduler.from_config(scheduler.config)
```
"""
# <===== TO BE REMOVED WITH DEPRECATION
# TODO(Patrick) - make sure to remove the following lines when config=="model_path" is deprecated
if "pretrained_model_name_or_path" in kwargs:
config = kwargs.pop("pretrained_model_name_or_path") | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
if config is None:
raise ValueError("Please make sure to provide a config as the first positional argument.")
# ======> | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
if not isinstance(config, dict):
deprecation_message = "It is deprecated to pass a pretrained model name or path to `from_config`."
if "Scheduler" in cls.__name__:
deprecation_message += (
f"If you were trying to load a scheduler, please use {cls}.from_pretrained(...) instead."
" Otherwise, please make sure to pass a configuration dictionary instead. This functionality will"
" be removed in v1.0.0."
)
elif "Model" in cls.__name__:
deprecation_message += (
f"If you were trying to load a model, please use {cls}.load_config(...) followed by"
f" {cls}.from_config(...) instead. Otherwise, please make sure to pass a configuration dictionary"
" instead. This functionality will be removed in v1.0.0."
) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
deprecate("config-passed-as-path", "1.0.0", deprecation_message, standard_warn=False)
config, kwargs = cls.load_config(pretrained_model_name_or_path=config, return_unused_kwargs=True, **kwargs) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
init_dict, unused_kwargs, hidden_dict = cls.extract_init_dict(config, **kwargs)
# Allow dtype to be specified on initialization
if "dtype" in unused_kwargs:
init_dict["dtype"] = unused_kwargs.pop("dtype")
# add possible deprecated kwargs
for deprecated_kwarg in cls._deprecated_kwargs:
if deprecated_kwarg in unused_kwargs:
init_dict[deprecated_kwarg] = unused_kwargs.pop(deprecated_kwarg)
# Return model and optionally state and/or unused_kwargs
model = cls(**init_dict)
# make sure to also save config parameters that might be used for compatible classes
# update _class_name
if "_class_name" in hidden_dict:
hidden_dict["_class_name"] = cls.__name__
model.register_to_config(**hidden_dict)
# add hidden kwargs of compatible classes to unused_kwargs
unused_kwargs = {**unused_kwargs, **hidden_dict} | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
if return_unused_kwargs:
return (model, unused_kwargs)
else:
return model
@classmethod
def get_config_dict(cls, *args, **kwargs):
deprecation_message = (
f" The function get_config_dict is deprecated. Please use {cls}.load_config instead. This function will be"
" removed in version v1.0.0"
)
deprecate("get_config_dict", "1.0.0", deprecation_message, standard_warn=False)
return cls.load_config(*args, **kwargs)
@classmethod
@validate_hf_hub_args
def load_config(
cls,
pretrained_model_name_or_path: Union[str, os.PathLike],
return_unused_kwargs=False,
return_commit_hash=False,
**kwargs,
) -> Tuple[Dict[str, Any], Dict[str, Any]]:
r"""
Load a model or scheduler configuration.
Parameters:
pretrained_model_name_or_path (`str` or `os.PathLike`, *optional*):
Can be either: | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
- A string, the *model id* (for example `google/ddpm-celebahq-256`) of a pretrained model hosted on
the Hub.
- A path to a *directory* (for example `./my_model_directory`) containing model weights saved with
[`~ConfigMixin.save_config`]. | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
cache_dir (`Union[str, os.PathLike]`, *optional*):
Path to a directory where a downloaded pretrained model configuration is cached if the standard cache
is not used.
force_download (`bool`, *optional*, defaults to `False`):
Whether or not to force the (re-)download of the model weights and configuration files, overriding the
cached versions if they exist.
proxies (`Dict[str, str]`, *optional*):
A dictionary of proxy servers to use by protocol or endpoint, for example, `{'http': 'foo.bar:3128',
'http://hostname': 'foo.bar:4012'}`. The proxies are used on each request.
output_loading_info(`bool`, *optional*, defaults to `False`):
Whether or not to also return a dictionary containing missing keys, unexpected keys and error messages.
local_files_only (`bool`, *optional*, defaults to `False`): | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
Whether to only load local model weights and configuration files or not. If set to `True`, the model
won't be downloaded from the Hub.
token (`str` or *bool*, *optional*):
The token to use as HTTP bearer authorization for remote files. If `True`, the token generated from
`diffusers-cli login` (stored in `~/.huggingface`) is used.
revision (`str`, *optional*, defaults to `"main"`):
The specific model version to use. It can be a branch name, a tag name, a commit id, or any identifier
allowed by Git.
subfolder (`str`, *optional*, defaults to `""`):
The subfolder location of a model file within a larger model repository on the Hub or locally.
return_unused_kwargs (`bool`, *optional*, defaults to `False):
Whether unused keyword arguments of the config are returned.
return_commit_hash (`bool`, *optional*, defaults to `False): | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
Whether the `commit_hash` of the loaded configuration are returned. | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
Returns:
`dict`:
A dictionary of all the parameters stored in a JSON configuration file.
"""
cache_dir = kwargs.pop("cache_dir", None)
local_dir = kwargs.pop("local_dir", None)
local_dir_use_symlinks = kwargs.pop("local_dir_use_symlinks", "auto")
force_download = kwargs.pop("force_download", False)
proxies = kwargs.pop("proxies", None)
token = kwargs.pop("token", None)
local_files_only = kwargs.pop("local_files_only", False)
revision = kwargs.pop("revision", None)
_ = kwargs.pop("mirror", None)
subfolder = kwargs.pop("subfolder", None)
user_agent = kwargs.pop("user_agent", {})
dduf_entries: Optional[Dict[str, DDUFEntry]] = kwargs.pop("dduf_entries", None)
user_agent = {**user_agent, "file_type": "config"}
user_agent = http_user_agent(user_agent)
pretrained_model_name_or_path = str(pretrained_model_name_or_path) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
if cls.config_name is None:
raise ValueError(
"`self.config_name` is not defined. Note that one should not load a config from "
"`ConfigMixin`. Please make sure to define `config_name` in a class inheriting from `ConfigMixin`"
)
# Custom path for now
if dduf_entries:
if subfolder is not None:
raise ValueError(
"DDUF file only allow for 1 level of directory (e.g transformer/model1/model.safetentors is not allowed). "
"Please check the DDUF structure"
)
config_file = cls._get_config_file_from_dduf(pretrained_model_name_or_path, dduf_entries)
elif os.path.isfile(pretrained_model_name_or_path):
config_file = pretrained_model_name_or_path
elif os.path.isdir(pretrained_model_name_or_path):
if subfolder is not None and os.path.isfile( | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
os.path.join(pretrained_model_name_or_path, subfolder, cls.config_name)
):
config_file = os.path.join(pretrained_model_name_or_path, subfolder, cls.config_name)
elif os.path.isfile(os.path.join(pretrained_model_name_or_path, cls.config_name)):
# Load from a PyTorch checkpoint
config_file = os.path.join(pretrained_model_name_or_path, cls.config_name)
else:
raise EnvironmentError(
f"Error no file named {cls.config_name} found in directory {pretrained_model_name_or_path}."
)
else:
try:
# Load from URL or cache if already cached
config_file = hf_hub_download(
pretrained_model_name_or_path,
filename=cls.config_name,
cache_dir=cache_dir,
force_download=force_download,
proxies=proxies, | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
local_files_only=local_files_only,
token=token,
user_agent=user_agent,
subfolder=subfolder,
revision=revision,
local_dir=local_dir,
local_dir_use_symlinks=local_dir_use_symlinks,
)
except RepositoryNotFoundError:
raise EnvironmentError(
f"{pretrained_model_name_or_path} is not a local folder and is not a valid model identifier"
" listed on 'https://huggingface.co./models'\nIf this is a private repository, make sure to pass a"
" token having permission to this repo with `token` or log in with `huggingface-cli login`."
)
except RevisionNotFoundError:
raise EnvironmentError(
f"{revision} is not a valid git identifier (branch name, tag name or commit id) that exists for" | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
" this model name. Check the model page at"
f" 'https://huggingface.co./{pretrained_model_name_or_path}' for available revisions."
)
except EntryNotFoundError:
raise EnvironmentError(
f"{pretrained_model_name_or_path} does not appear to have a file named {cls.config_name}."
)
except HTTPError as err:
raise EnvironmentError(
"There was a specific connection error when trying to load"
f" {pretrained_model_name_or_path}:\n{err}"
)
except ValueError:
raise EnvironmentError(
f"We couldn't connect to '{HUGGINGFACE_CO_RESOLVE_ENDPOINT}' to load this model, couldn't find it"
f" in the cached files and it looks like {pretrained_model_name_or_path} is not the path to a" | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
f" directory containing a {cls.config_name} file.\nCheckout your internet connection or see how to"
" run the library in offline mode at"
" 'https://huggingface.co./docs/diffusers/installation#offline-mode'."
)
except EnvironmentError:
raise EnvironmentError(
f"Can't load config for '{pretrained_model_name_or_path}'. If you were trying to load it from "
"'https://huggingface.co./models', make sure you don't have a local directory with the same name. "
f"Otherwise, make sure '{pretrained_model_name_or_path}' is the correct path to a directory "
f"containing a {cls.config_name} file"
)
try:
config_dict = cls._dict_from_json_file(config_file, dduf_entries=dduf_entries) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
commit_hash = extract_commit_hash(config_file)
except (json.JSONDecodeError, UnicodeDecodeError):
raise EnvironmentError(f"It looks like the config file at '{config_file}' is not a valid JSON file.")
if not (return_unused_kwargs or return_commit_hash):
return config_dict
outputs = (config_dict,)
if return_unused_kwargs:
outputs += (kwargs,)
if return_commit_hash:
outputs += (commit_hash,)
return outputs
@staticmethod
def _get_init_keys(input_class):
return set(dict(inspect.signature(input_class.__init__).parameters).keys())
@classmethod
def extract_init_dict(cls, config_dict, **kwargs):
# Skip keys that were not present in the original config, so default __init__ values were used
used_defaults = config_dict.get("_use_default_values", [])
config_dict = {k: v for k, v in config_dict.items() if k not in used_defaults and k != "_use_default_values"} | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
# 0. Copy origin config dict
original_dict = dict(config_dict.items())
# 1. Retrieve expected config attributes from __init__ signature
expected_keys = cls._get_init_keys(cls)
expected_keys.remove("self")
# remove general kwargs if present in dict
if "kwargs" in expected_keys:
expected_keys.remove("kwargs")
# remove flax internal keys
if hasattr(cls, "_flax_internal_args"):
for arg in cls._flax_internal_args:
expected_keys.remove(arg)
# 2. Remove attributes that cannot be expected from expected config attributes
# remove keys to be ignored
if len(cls.ignore_for_config) > 0:
expected_keys = expected_keys - set(cls.ignore_for_config)
# load diffusers library to import compatible and original scheduler
diffusers_library = importlib.import_module(__name__.split(".")[0]) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
if cls.has_compatibles:
compatible_classes = [c for c in cls._get_compatibles() if not isinstance(c, DummyObject)]
else:
compatible_classes = []
expected_keys_comp_cls = set()
for c in compatible_classes:
expected_keys_c = cls._get_init_keys(c)
expected_keys_comp_cls = expected_keys_comp_cls.union(expected_keys_c)
expected_keys_comp_cls = expected_keys_comp_cls - cls._get_init_keys(cls)
config_dict = {k: v for k, v in config_dict.items() if k not in expected_keys_comp_cls} | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
# remove attributes from orig class that cannot be expected
orig_cls_name = config_dict.pop("_class_name", cls.__name__)
if (
isinstance(orig_cls_name, str)
and orig_cls_name != cls.__name__
and hasattr(diffusers_library, orig_cls_name)
):
orig_cls = getattr(diffusers_library, orig_cls_name)
unexpected_keys_from_orig = cls._get_init_keys(orig_cls) - expected_keys
config_dict = {k: v for k, v in config_dict.items() if k not in unexpected_keys_from_orig}
elif not isinstance(orig_cls_name, str) and not isinstance(orig_cls_name, (list, tuple)):
raise ValueError(
"Make sure that the `_class_name` is of type string or list of string (for custom pipelines)."
)
# remove private attributes
config_dict = {k: v for k, v in config_dict.items() if not k.startswith("_")} | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
# remove quantization_config
config_dict = {k: v for k, v in config_dict.items() if k != "quantization_config"}
# 3. Create keyword arguments that will be passed to __init__ from expected keyword arguments
init_dict = {}
for key in expected_keys:
# if config param is passed to kwarg and is present in config dict
# it should overwrite existing config dict key
if key in kwargs and key in config_dict:
config_dict[key] = kwargs.pop(key)
if key in kwargs:
# overwrite key
init_dict[key] = kwargs.pop(key)
elif key in config_dict:
# use value from config dict
init_dict[key] = config_dict.pop(key) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
# 4. Give nice warning if unexpected values have been passed
if len(config_dict) > 0:
logger.warning(
f"The config attributes {config_dict} were passed to {cls.__name__}, "
"but are not expected and will be ignored. Please verify your "
f"{cls.config_name} configuration file."
)
# 5. Give nice info if config attributes are initialized to default because they have not been passed
passed_keys = set(init_dict.keys())
if len(expected_keys - passed_keys) > 0:
logger.info(
f"{expected_keys - passed_keys} was not found in config. Values will be initialized to default values."
)
# 6. Define unused keyword arguments
unused_kwargs = {**config_dict, **kwargs}
# 7. Define "hidden" config parameters that were saved for compatible classes
hidden_config_dict = {k: v for k, v in original_dict.items() if k not in init_dict} | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
return init_dict, unused_kwargs, hidden_config_dict
@classmethod
def _dict_from_json_file(
cls, json_file: Union[str, os.PathLike], dduf_entries: Optional[Dict[str, DDUFEntry]] = None
):
if dduf_entries:
text = dduf_entries[json_file].read_text()
else:
with open(json_file, "r", encoding="utf-8") as reader:
text = reader.read()
return json.loads(text)
def __repr__(self):
return f"{self.__class__.__name__} {self.to_json_string()}"
@property
def config(self) -> Dict[str, Any]:
"""
Returns the config of the class as a frozen dictionary
Returns:
`Dict[str, Any]`: Config of the class.
"""
return self._internal_dict
def to_json_string(self) -> str:
"""
Serializes the configuration instance to a JSON string. | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
Returns:
`str`:
String containing all the attributes that make up the configuration instance in JSON format.
"""
config_dict = self._internal_dict if hasattr(self, "_internal_dict") else {}
config_dict["_class_name"] = self.__class__.__name__
config_dict["_diffusers_version"] = __version__
def to_json_saveable(value):
if isinstance(value, np.ndarray):
value = value.tolist()
elif isinstance(value, Path):
value = value.as_posix()
return value
if "quantization_config" in config_dict:
config_dict["quantization_config"] = (
config_dict.quantization_config.to_dict()
if not isinstance(config_dict.quantization_config, dict)
else config_dict.quantization_config
) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
config_dict = {k: to_json_saveable(v) for k, v in config_dict.items()}
# Don't save "_ignore_files" or "_use_default_values"
config_dict.pop("_ignore_files", None)
config_dict.pop("_use_default_values", None)
# pop the `_pre_quantization_dtype` as torch.dtypes are not serializable.
_ = config_dict.pop("_pre_quantization_dtype", None)
return json.dumps(config_dict, indent=2, sort_keys=True) + "\n"
def to_json_file(self, json_file_path: Union[str, os.PathLike]):
"""
Save the configuration instance's parameters to a JSON file.
Args:
json_file_path (`str` or `os.PathLike`):
Path to the JSON file to save a configuration instance's parameters.
"""
with open(json_file_path, "w", encoding="utf-8") as writer:
writer.write(self.to_json_string()) | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
@classmethod
def _get_config_file_from_dduf(cls, pretrained_model_name_or_path: str, dduf_entries: Dict[str, DDUFEntry]):
# paths inside a DDUF file must always be "/"
config_file = (
cls.config_name
if pretrained_model_name_or_path == ""
else "/".join([pretrained_model_name_or_path, cls.config_name])
)
if config_file not in dduf_entries:
raise ValueError(
f"We did not manage to find the file {config_file} in the dduf file. We only have the following files {dduf_entries.keys()}"
)
return config_file | 1 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
class LegacyConfigMixin(ConfigMixin):
r"""
A subclass of `ConfigMixin` to resolve class mapping from legacy classes (like `Transformer2DModel`) to more
pipeline-specific classes (like `DiTTransformer2DModel`).
"""
@classmethod
def from_config(cls, config: Union[FrozenDict, Dict[str, Any]] = None, return_unused_kwargs=False, **kwargs):
# To prevent dependency import problem.
from .models.model_loading_utils import _fetch_remapped_cls_from_config
# resolve remapping
remapped_class = _fetch_remapped_cls_from_config(config, cls)
return remapped_class.from_config(config, return_unused_kwargs, **kwargs) | 2 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/configuration_utils.py |
class VaeImageProcessor(ConfigMixin):
"""
Image processor for VAE. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
do_resize (`bool`, *optional*, defaults to `True`):
Whether to downscale the image's (height, width) dimensions to multiples of `vae_scale_factor`. Can accept
`height` and `width` arguments from [`image_processor.VaeImageProcessor.preprocess`] method.
vae_scale_factor (`int`, *optional*, defaults to `8`):
VAE scale factor. If `do_resize` is `True`, the image is automatically resized to multiples of this factor.
resample (`str`, *optional*, defaults to `lanczos`):
Resampling filter to use when resizing the image.
do_normalize (`bool`, *optional*, defaults to `True`):
Whether to normalize the image to [-1,1].
do_binarize (`bool`, *optional*, defaults to `False`):
Whether to binarize the image to 0/1.
do_convert_rgb (`bool`, *optional*, defaults to be `False`):
Whether to convert the images to RGB format. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
do_convert_grayscale (`bool`, *optional*, defaults to be `False`):
Whether to convert the images to grayscale format.
""" | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
config_name = CONFIG_NAME
@register_to_config
def __init__(
self,
do_resize: bool = True,
vae_scale_factor: int = 8,
vae_latent_channels: int = 4,
resample: str = "lanczos",
do_normalize: bool = True,
do_binarize: bool = False,
do_convert_rgb: bool = False,
do_convert_grayscale: bool = False,
):
super().__init__()
if do_convert_rgb and do_convert_grayscale:
raise ValueError(
"`do_convert_rgb` and `do_convert_grayscale` can not both be set to `True`,"
" if you intended to convert the image into RGB format, please set `do_convert_grayscale = False`.",
" if you intended to convert the image into grayscale format, please set `do_convert_rgb = False`",
)
@staticmethod
def numpy_to_pil(images: np.ndarray) -> List[PIL.Image.Image]:
r"""
Convert a numpy image or a batch of images to a PIL image. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
images (`np.ndarray`):
The image array to convert to PIL format.
Returns:
`List[PIL.Image.Image]`:
A list of PIL images.
"""
if images.ndim == 3:
images = images[None, ...]
images = (images * 255).round().astype("uint8")
if images.shape[-1] == 1:
# special case for grayscale (single channel) images
pil_images = [Image.fromarray(image.squeeze(), mode="L") for image in images]
else:
pil_images = [Image.fromarray(image) for image in images]
return pil_images
@staticmethod
def pil_to_numpy(images: Union[List[PIL.Image.Image], PIL.Image.Image]) -> np.ndarray:
r"""
Convert a PIL image or a list of PIL images to NumPy arrays.
Args:
images (`PIL.Image.Image` or `List[PIL.Image.Image]`):
The PIL image or list of images to convert to NumPy format. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`np.ndarray`:
A NumPy array representation of the images.
"""
if not isinstance(images, list):
images = [images]
images = [np.array(image).astype(np.float32) / 255.0 for image in images]
images = np.stack(images, axis=0)
return images
@staticmethod
def numpy_to_pt(images: np.ndarray) -> torch.Tensor:
r"""
Convert a NumPy image to a PyTorch tensor.
Args:
images (`np.ndarray`):
The NumPy image array to convert to PyTorch format.
Returns:
`torch.Tensor`:
A PyTorch tensor representation of the images.
"""
if images.ndim == 3:
images = images[..., None]
images = torch.from_numpy(images.transpose(0, 3, 1, 2))
return images
@staticmethod
def pt_to_numpy(images: torch.Tensor) -> np.ndarray:
r"""
Convert a PyTorch tensor to a NumPy image. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
images (`torch.Tensor`):
The PyTorch tensor to convert to NumPy format.
Returns:
`np.ndarray`:
A NumPy array representation of the images.
"""
images = images.cpu().permute(0, 2, 3, 1).float().numpy()
return images
@staticmethod
def normalize(images: Union[np.ndarray, torch.Tensor]) -> Union[np.ndarray, torch.Tensor]:
r"""
Normalize an image array to [-1,1].
Args:
images (`np.ndarray` or `torch.Tensor`):
The image array to normalize.
Returns:
`np.ndarray` or `torch.Tensor`:
The normalized image array.
"""
return 2.0 * images - 1.0
@staticmethod
def denormalize(images: Union[np.ndarray, torch.Tensor]) -> Union[np.ndarray, torch.Tensor]:
r"""
Denormalize an image array to [0,1]. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
images (`np.ndarray` or `torch.Tensor`):
The image array to denormalize.
Returns:
`np.ndarray` or `torch.Tensor`:
The denormalized image array.
"""
return (images * 0.5 + 0.5).clamp(0, 1)
@staticmethod
def convert_to_rgb(image: PIL.Image.Image) -> PIL.Image.Image:
r"""
Converts a PIL image to RGB format.
Args:
image (`PIL.Image.Image`):
The PIL image to convert to RGB.
Returns:
`PIL.Image.Image`:
The RGB-converted PIL image.
"""
image = image.convert("RGB")
return image
@staticmethod
def convert_to_grayscale(image: PIL.Image.Image) -> PIL.Image.Image:
r"""
Converts a given PIL image to grayscale.
Args:
image (`PIL.Image.Image`):
The input image to convert. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`PIL.Image.Image`:
The image converted to grayscale.
"""
image = image.convert("L")
return image
@staticmethod
def blur(image: PIL.Image.Image, blur_factor: int = 4) -> PIL.Image.Image:
r"""
Applies Gaussian blur to an image.
Args:
image (`PIL.Image.Image`):
The PIL image to convert to grayscale.
Returns:
`PIL.Image.Image`:
The grayscale-converted PIL image.
"""
image = image.filter(ImageFilter.GaussianBlur(blur_factor))
return image | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
@staticmethod
def get_crop_region(mask_image: PIL.Image.Image, width: int, height: int, pad=0):
r"""
Finds a rectangular region that contains all masked ares in an image, and expands region to match the aspect
ratio of the original image; for example, if user drew mask in a 128x32 region, and the dimensions for
processing are 512x512, the region will be expanded to 128x128.
Args:
mask_image (PIL.Image.Image): Mask image.
width (int): Width of the image to be processed.
height (int): Height of the image to be processed.
pad (int, optional): Padding to be added to the crop region. Defaults to 0.
Returns:
tuple: (x1, y1, x2, y2) represent a rectangular region that contains all masked ares in an image and
matches the original aspect ratio.
"""
mask_image = mask_image.convert("L")
mask = np.array(mask_image) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# 1. find a rectangular region that contains all masked ares in an image
h, w = mask.shape
crop_left = 0
for i in range(w):
if not (mask[:, i] == 0).all():
break
crop_left += 1
crop_right = 0
for i in reversed(range(w)):
if not (mask[:, i] == 0).all():
break
crop_right += 1
crop_top = 0
for i in range(h):
if not (mask[i] == 0).all():
break
crop_top += 1
crop_bottom = 0
for i in reversed(range(h)):
if not (mask[i] == 0).all():
break
crop_bottom += 1
# 2. add padding to the crop region
x1, y1, x2, y2 = (
int(max(crop_left - pad, 0)),
int(max(crop_top - pad, 0)),
int(min(w - crop_right + pad, w)),
int(min(h - crop_bottom + pad, h)),
) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# 3. expands crop region to match the aspect ratio of the image to be processed
ratio_crop_region = (x2 - x1) / (y2 - y1)
ratio_processing = width / height | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if ratio_crop_region > ratio_processing:
desired_height = (x2 - x1) / ratio_processing
desired_height_diff = int(desired_height - (y2 - y1))
y1 -= desired_height_diff // 2
y2 += desired_height_diff - desired_height_diff // 2
if y2 >= mask_image.height:
diff = y2 - mask_image.height
y2 -= diff
y1 -= diff
if y1 < 0:
y2 -= y1
y1 -= y1
if y2 >= mask_image.height:
y2 = mask_image.height
else:
desired_width = (y2 - y1) * ratio_processing
desired_width_diff = int(desired_width - (x2 - x1))
x1 -= desired_width_diff // 2
x2 += desired_width_diff - desired_width_diff // 2
if x2 >= mask_image.width:
diff = x2 - mask_image.width
x2 -= diff
x1 -= diff
if x1 < 0:
x2 -= x1 | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
x1 -= x1
if x2 >= mask_image.width:
x2 = mask_image.width | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
return x1, y1, x2, y2
def _resize_and_fill(
self,
image: PIL.Image.Image,
width: int,
height: int,
) -> PIL.Image.Image:
r"""
Resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center
the image within the dimensions, filling empty with data from image.
Args:
image (`PIL.Image.Image`):
The image to resize and fill.
width (`int`):
The width to resize the image to.
height (`int`):
The height to resize the image to.
Returns:
`PIL.Image.Image`:
The resized and filled image.
"""
ratio = width / height
src_ratio = image.width / image.height
src_w = width if ratio < src_ratio else image.width * height // image.height
src_h = height if ratio >= src_ratio else image.height * width // image.width | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
resized = image.resize((src_w, src_h), resample=PIL_INTERPOLATION["lanczos"])
res = Image.new("RGB", (width, height))
res.paste(resized, box=(width // 2 - src_w // 2, height // 2 - src_h // 2)) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if ratio < src_ratio:
fill_height = height // 2 - src_h // 2
if fill_height > 0:
res.paste(resized.resize((width, fill_height), box=(0, 0, width, 0)), box=(0, 0))
res.paste(
resized.resize((width, fill_height), box=(0, resized.height, width, resized.height)),
box=(0, fill_height + src_h),
)
elif ratio > src_ratio:
fill_width = width // 2 - src_w // 2
if fill_width > 0:
res.paste(resized.resize((fill_width, height), box=(0, 0, 0, height)), box=(0, 0))
res.paste(
resized.resize((fill_width, height), box=(resized.width, 0, resized.width, height)),
box=(fill_width + src_w, 0),
)
return res | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
def _resize_and_crop(
self,
image: PIL.Image.Image,
width: int,
height: int,
) -> PIL.Image.Image:
r"""
Resize the image to fit within the specified width and height, maintaining the aspect ratio, and then center
the image within the dimensions, cropping the excess.
Args:
image (`PIL.Image.Image`):
The image to resize and crop.
width (`int`):
The width to resize the image to.
height (`int`):
The height to resize the image to.
Returns:
`PIL.Image.Image`:
The resized and cropped image.
"""
ratio = width / height
src_ratio = image.width / image.height
src_w = width if ratio > src_ratio else image.width * height // image.height
src_h = height if ratio <= src_ratio else image.height * width // image.width | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
resized = image.resize((src_w, src_h), resample=PIL_INTERPOLATION["lanczos"])
res = Image.new("RGB", (width, height))
res.paste(resized, box=(width // 2 - src_w // 2, height // 2 - src_h // 2))
return res
def resize(
self,
image: Union[PIL.Image.Image, np.ndarray, torch.Tensor],
height: int,
width: int,
resize_mode: str = "default", # "default", "fill", "crop"
) -> Union[PIL.Image.Image, np.ndarray, torch.Tensor]:
"""
Resize image. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
image (`PIL.Image.Image`, `np.ndarray` or `torch.Tensor`):
The image input, can be a PIL image, numpy array or pytorch tensor.
height (`int`):
The height to resize to.
width (`int`):
The width to resize to.
resize_mode (`str`, *optional*, defaults to `default`):
The resize mode to use, can be one of `default` or `fill`. If `default`, will resize the image to fit
within the specified width and height, and it may not maintaining the original aspect ratio. If `fill`,
will resize the image to fit within the specified width and height, maintaining the aspect ratio, and
then center the image within the dimensions, filling empty with data from image. If `crop`, will resize
the image to fit within the specified width and height, maintaining the aspect ratio, and then center | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
the image within the dimensions, cropping the excess. Note that resize_mode `fill` and `crop` are only
supported for PIL image input. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`PIL.Image.Image`, `np.ndarray` or `torch.Tensor`:
The resized image.
"""
if resize_mode != "default" and not isinstance(image, PIL.Image.Image):
raise ValueError(f"Only PIL image input is supported for resize_mode {resize_mode}")
if isinstance(image, PIL.Image.Image):
if resize_mode == "default":
image = image.resize((width, height), resample=PIL_INTERPOLATION[self.config.resample])
elif resize_mode == "fill":
image = self._resize_and_fill(image, width, height)
elif resize_mode == "crop":
image = self._resize_and_crop(image, width, height)
else:
raise ValueError(f"resize_mode {resize_mode} is not supported") | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
elif isinstance(image, torch.Tensor):
image = torch.nn.functional.interpolate(
image,
size=(height, width),
)
elif isinstance(image, np.ndarray):
image = self.numpy_to_pt(image)
image = torch.nn.functional.interpolate(
image,
size=(height, width),
)
image = self.pt_to_numpy(image)
return image
def binarize(self, image: PIL.Image.Image) -> PIL.Image.Image:
"""
Create a mask.
Args:
image (`PIL.Image.Image`):
The image input, should be a PIL image.
Returns:
`PIL.Image.Image`:
The binarized image. Values less than 0.5 are set to 0, values greater than 0.5 are set to 1.
"""
image[image < 0.5] = 0
image[image >= 0.5] = 1
return image | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
def _denormalize_conditionally(
self, images: torch.Tensor, do_denormalize: Optional[List[bool]] = None
) -> torch.Tensor:
r"""
Denormalize a batch of images based on a condition list.
Args:
images (`torch.Tensor`):
The input image tensor.
do_denormalize (`Optional[List[bool]`, *optional*, defaults to `None`):
A list of booleans indicating whether to denormalize each image in the batch. If `None`, will use the
value of `do_normalize` in the `VaeImageProcessor` config.
"""
if do_denormalize is None:
return self.denormalize(images) if self.config.do_normalize else images
return torch.stack(
[self.denormalize(images[i]) if do_denormalize[i] else images[i] for i in range(images.shape[0])]
) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
def get_default_height_width(
self,
image: Union[PIL.Image.Image, np.ndarray, torch.Tensor],
height: Optional[int] = None,
width: Optional[int] = None,
) -> Tuple[int, int]:
r"""
Returns the height and width of the image, downscaled to the next integer multiple of `vae_scale_factor`. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
image (`Union[PIL.Image.Image, np.ndarray, torch.Tensor]`):
The image input, which can be a PIL image, NumPy array, or PyTorch tensor. If it is a NumPy array, it
should have shape `[batch, height, width]` or `[batch, height, width, channels]`. If it is a PyTorch
tensor, it should have shape `[batch, channels, height, width]`.
height (`Optional[int]`, *optional*, defaults to `None`):
The height of the preprocessed image. If `None`, the height of the `image` input will be used.
width (`Optional[int]`, *optional*, defaults to `None`):
The width of the preprocessed image. If `None`, the width of the `image` input will be used.
Returns:
`Tuple[int, int]`:
A tuple containing the height and width, both resized to the nearest integer multiple of
`vae_scale_factor`.
""" | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if height is None:
if isinstance(image, PIL.Image.Image):
height = image.height
elif isinstance(image, torch.Tensor):
height = image.shape[2]
else:
height = image.shape[1]
if width is None:
if isinstance(image, PIL.Image.Image):
width = image.width
elif isinstance(image, torch.Tensor):
width = image.shape[3]
else:
width = image.shape[2]
width, height = (
x - x % self.config.vae_scale_factor for x in (width, height)
) # resize to integer multiple of vae_scale_factor
return height, width | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
def preprocess(
self,
image: PipelineImageInput,
height: Optional[int] = None,
width: Optional[int] = None,
resize_mode: str = "default", # "default", "fill", "crop"
crops_coords: Optional[Tuple[int, int, int, int]] = None,
) -> torch.Tensor:
"""
Preprocess the image input. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
image (`PipelineImageInput`):
The image input, accepted formats are PIL images, NumPy arrays, PyTorch tensors; Also accept list of
supported formats.
height (`int`, *optional*):
The height in preprocessed image. If `None`, will use the `get_default_height_width()` to get default
height.
width (`int`, *optional*):
The width in preprocessed. If `None`, will use get_default_height_width()` to get the default width.
resize_mode (`str`, *optional*, defaults to `default`):
The resize mode, can be one of `default` or `fill`. If `default`, will resize the image to fit within
the specified width and height, and it may not maintaining the original aspect ratio. If `fill`, will
resize the image to fit within the specified width and height, maintaining the aspect ratio, and then | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
center the image within the dimensions, filling empty with data from image. If `crop`, will resize the
image to fit within the specified width and height, maintaining the aspect ratio, and then center the
image within the dimensions, cropping the excess. Note that resize_mode `fill` and `crop` are only
supported for PIL image input.
crops_coords (`List[Tuple[int, int, int, int]]`, *optional*, defaults to `None`):
The crop coordinates for each image in the batch. If `None`, will not crop the image. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`torch.Tensor`:
The preprocessed image.
"""
supported_formats = (PIL.Image.Image, np.ndarray, torch.Tensor) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# Expand the missing dimension for 3-dimensional pytorch tensor or numpy array that represents grayscale image
if self.config.do_convert_grayscale and isinstance(image, (torch.Tensor, np.ndarray)) and image.ndim == 3:
if isinstance(image, torch.Tensor):
# if image is a pytorch tensor could have 2 possible shapes:
# 1. batch x height x width: we should insert the channel dimension at position 1
# 2. channel x height x width: we should insert batch dimension at position 0,
# however, since both channel and batch dimension has same size 1, it is same to insert at position 1
# for simplicity, we insert a dimension of size 1 at position 1 for both cases
image = image.unsqueeze(1)
else:
# if it is a numpy array, it could have 2 possible shapes:
# 1. batch x height x width: insert channel dimension on last position | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# 2. height x width x channel: insert batch dimension on first position
if image.shape[-1] == 1:
image = np.expand_dims(image, axis=0)
else:
image = np.expand_dims(image, axis=-1) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if isinstance(image, list) and isinstance(image[0], np.ndarray) and image[0].ndim == 4:
warnings.warn(
"Passing `image` as a list of 4d np.ndarray is deprecated."
"Please concatenate the list along the batch dimension and pass it as a single 4d np.ndarray",
FutureWarning,
)
image = np.concatenate(image, axis=0)
if isinstance(image, list) and isinstance(image[0], torch.Tensor) and image[0].ndim == 4:
warnings.warn(
"Passing `image` as a list of 4d torch.Tensor is deprecated."
"Please concatenate the list along the batch dimension and pass it as a single 4d torch.Tensor",
FutureWarning,
)
image = torch.cat(image, axis=0) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if not is_valid_image_imagelist(image):
raise ValueError(
f"Input is in incorrect format. Currently, we only support {', '.join(str(x) for x in supported_formats)}"
)
if not isinstance(image, list):
image = [image]
if isinstance(image[0], PIL.Image.Image):
if crops_coords is not None:
image = [i.crop(crops_coords) for i in image]
if self.config.do_resize:
height, width = self.get_default_height_width(image[0], height, width)
image = [self.resize(i, height, width, resize_mode=resize_mode) for i in image]
if self.config.do_convert_rgb:
image = [self.convert_to_rgb(i) for i in image]
elif self.config.do_convert_grayscale:
image = [self.convert_to_grayscale(i) for i in image]
image = self.pil_to_numpy(image) # to np
image = self.numpy_to_pt(image) # to pt | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
elif isinstance(image[0], np.ndarray):
image = np.concatenate(image, axis=0) if image[0].ndim == 4 else np.stack(image, axis=0)
image = self.numpy_to_pt(image)
height, width = self.get_default_height_width(image, height, width)
if self.config.do_resize:
image = self.resize(image, height, width)
elif isinstance(image[0], torch.Tensor):
image = torch.cat(image, axis=0) if image[0].ndim == 4 else torch.stack(image, axis=0)
if self.config.do_convert_grayscale and image.ndim == 3:
image = image.unsqueeze(1)
channel = image.shape[1]
# don't need any preprocess if the image is latents
if channel == self.config.vae_latent_channels:
return image
height, width = self.get_default_height_width(image, height, width)
if self.config.do_resize:
image = self.resize(image, height, width) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# expected range [0,1], normalize to [-1,1]
do_normalize = self.config.do_normalize
if do_normalize and image.min() < 0:
warnings.warn(
"Passing `image` as torch tensor with value range in [-1,1] is deprecated. The expected value range for image tensor is [0,1] "
f"when passing as pytorch tensor or numpy Array. You passed `image` with value range [{image.min()},{image.max()}]",
FutureWarning,
)
do_normalize = False
if do_normalize:
image = self.normalize(image)
if self.config.do_binarize:
image = self.binarize(image)
return image
def postprocess(
self,
image: torch.Tensor,
output_type: str = "pil",
do_denormalize: Optional[List[bool]] = None,
) -> Union[PIL.Image.Image, np.ndarray, torch.Tensor]:
"""
Postprocess the image output from tensor to `output_type`. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
image (`torch.Tensor`):
The image input, should be a pytorch tensor with shape `B x C x H x W`.
output_type (`str`, *optional*, defaults to `pil`):
The output type of the image, can be one of `pil`, `np`, `pt`, `latent`.
do_denormalize (`List[bool]`, *optional*, defaults to `None`):
Whether to denormalize the image to [0,1]. If `None`, will use the value of `do_normalize` in the
`VaeImageProcessor` config. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`PIL.Image.Image`, `np.ndarray` or `torch.Tensor`:
The postprocessed image.
"""
if not isinstance(image, torch.Tensor):
raise ValueError(
f"Input for postprocessing is in incorrect format: {type(image)}. We only support pytorch tensor"
)
if output_type not in ["latent", "pt", "np", "pil"]:
deprecation_message = (
f"the output_type {output_type} is outdated and has been set to `np`. Please make sure to set it to one of these instead: "
"`pil`, `np`, `pt`, `latent`"
)
deprecate("Unsupported output_type", "1.0.0", deprecation_message, standard_warn=False)
output_type = "np"
if output_type == "latent":
return image
image = self._denormalize_conditionally(image, do_denormalize)
if output_type == "pt":
return image
image = self.pt_to_numpy(image) | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if output_type == "np":
return image
if output_type == "pil":
return self.numpy_to_pil(image)
def apply_overlay(
self,
mask: PIL.Image.Image,
init_image: PIL.Image.Image,
image: PIL.Image.Image,
crop_coords: Optional[Tuple[int, int, int, int]] = None,
) -> PIL.Image.Image:
r"""
Applies an overlay of the mask and the inpainted image on the original image.
Args:
mask (`PIL.Image.Image`):
The mask image that highlights regions to overlay.
init_image (`PIL.Image.Image`):
The original image to which the overlay is applied.
image (`PIL.Image.Image`):
The image to overlay onto the original.
crop_coords (`Tuple[int, int, int, int]`, *optional*):
Coordinates to crop the image. If provided, the image will be cropped accordingly. | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`PIL.Image.Image`:
The final image with the overlay applied.
"""
width, height = init_image.width, init_image.height
init_image_masked = PIL.Image.new("RGBa", (width, height))
init_image_masked.paste(init_image.convert("RGBA").convert("RGBa"), mask=ImageOps.invert(mask.convert("L")))
init_image_masked = init_image_masked.convert("RGBA")
if crop_coords is not None:
x, y, x2, y2 = crop_coords
w = x2 - x
h = y2 - y
base_image = PIL.Image.new("RGBA", (width, height))
image = self.resize(image, height=h, width=w, resize_mode="crop")
base_image.paste(image, (x, y))
image = base_image.convert("RGB")
image = image.convert("RGBA")
image.alpha_composite(init_image_masked)
image = image.convert("RGB")
return image | 3 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
class VaeImageProcessorLDM3D(VaeImageProcessor):
"""
Image processor for VAE LDM3D.
Args:
do_resize (`bool`, *optional*, defaults to `True`):
Whether to downscale the image's (height, width) dimensions to multiples of `vae_scale_factor`.
vae_scale_factor (`int`, *optional*, defaults to `8`):
VAE scale factor. If `do_resize` is `True`, the image is automatically resized to multiples of this factor.
resample (`str`, *optional*, defaults to `lanczos`):
Resampling filter to use when resizing the image.
do_normalize (`bool`, *optional*, defaults to `True`):
Whether to normalize the image to [-1,1].
"""
config_name = CONFIG_NAME
@register_to_config
def __init__(
self,
do_resize: bool = True,
vae_scale_factor: int = 8,
resample: str = "lanczos",
do_normalize: bool = True,
):
super().__init__() | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
@staticmethod
def numpy_to_pil(images: np.ndarray) -> List[PIL.Image.Image]:
r"""
Convert a NumPy image or a batch of images to a list of PIL images.
Args:
images (`np.ndarray`):
The input NumPy array of images, which can be a single image or a batch.
Returns:
`List[PIL.Image.Image]`:
A list of PIL images converted from the input NumPy array.
"""
if images.ndim == 3:
images = images[None, ...]
images = (images * 255).round().astype("uint8")
if images.shape[-1] == 1:
# special case for grayscale (single channel) images
pil_images = [Image.fromarray(image.squeeze(), mode="L") for image in images]
else:
pil_images = [Image.fromarray(image[:, :, :3]) for image in images]
return pil_images | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
@staticmethod
def depth_pil_to_numpy(images: Union[List[PIL.Image.Image], PIL.Image.Image]) -> np.ndarray:
r"""
Convert a PIL image or a list of PIL images to NumPy arrays.
Args:
images (`Union[List[PIL.Image.Image], PIL.Image.Image]`):
The input image or list of images to be converted.
Returns:
`np.ndarray`:
A NumPy array of the converted images.
"""
if not isinstance(images, list):
images = [images]
images = [np.array(image).astype(np.float32) / (2**16 - 1) for image in images]
images = np.stack(images, axis=0)
return images
@staticmethod
def rgblike_to_depthmap(image: Union[np.ndarray, torch.Tensor]) -> Union[np.ndarray, torch.Tensor]:
r"""
Convert an RGB-like depth image to a depth map.
Args:
image (`Union[np.ndarray, torch.Tensor]`):
The RGB-like depth image to convert. | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`Union[np.ndarray, torch.Tensor]`:
The corresponding depth map.
"""
return image[:, :, 1] * 2**8 + image[:, :, 2]
def numpy_to_depth(self, images: np.ndarray) -> List[PIL.Image.Image]:
r"""
Convert a NumPy depth image or a batch of images to a list of PIL images.
Args:
images (`np.ndarray`):
The input NumPy array of depth images, which can be a single image or a batch. | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`List[PIL.Image.Image]`:
A list of PIL images converted from the input NumPy depth images.
"""
if images.ndim == 3:
images = images[None, ...]
images_depth = images[:, :, :, 3:]
if images.shape[-1] == 6:
images_depth = (images_depth * 255).round().astype("uint8")
pil_images = [
Image.fromarray(self.rgblike_to_depthmap(image_depth), mode="I;16") for image_depth in images_depth
]
elif images.shape[-1] == 4:
images_depth = (images_depth * 65535.0).astype(np.uint16)
pil_images = [Image.fromarray(image_depth, mode="I;16") for image_depth in images_depth]
else:
raise Exception("Not supported")
return pil_images | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
def postprocess(
self,
image: torch.Tensor,
output_type: str = "pil",
do_denormalize: Optional[List[bool]] = None,
) -> Union[PIL.Image.Image, np.ndarray, torch.Tensor]:
"""
Postprocess the image output from tensor to `output_type`.
Args:
image (`torch.Tensor`):
The image input, should be a pytorch tensor with shape `B x C x H x W`.
output_type (`str`, *optional*, defaults to `pil`):
The output type of the image, can be one of `pil`, `np`, `pt`, `latent`.
do_denormalize (`List[bool]`, *optional*, defaults to `None`):
Whether to denormalize the image to [0,1]. If `None`, will use the value of `do_normalize` in the
`VaeImageProcessor` config. | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`PIL.Image.Image`, `np.ndarray` or `torch.Tensor`:
The postprocessed image.
"""
if not isinstance(image, torch.Tensor):
raise ValueError(
f"Input for postprocessing is in incorrect format: {type(image)}. We only support pytorch tensor"
)
if output_type not in ["latent", "pt", "np", "pil"]:
deprecation_message = (
f"the output_type {output_type} is outdated and has been set to `np`. Please make sure to set it to one of these instead: "
"`pil`, `np`, `pt`, `latent`"
)
deprecate("Unsupported output_type", "1.0.0", deprecation_message, standard_warn=False)
output_type = "np"
image = self._denormalize_conditionally(image, do_denormalize)
image = self.pt_to_numpy(image) | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if output_type == "np":
if image.shape[-1] == 6:
image_depth = np.stack([self.rgblike_to_depthmap(im[:, :, 3:]) for im in image], axis=0)
else:
image_depth = image[:, :, :, 3:]
return image[:, :, :, :3], image_depth
if output_type == "pil":
return self.numpy_to_pil(image), self.numpy_to_depth(image)
else:
raise Exception(f"This type {output_type} is not supported")
def preprocess(
self,
rgb: Union[torch.Tensor, PIL.Image.Image, np.ndarray],
depth: Union[torch.Tensor, PIL.Image.Image, np.ndarray],
height: Optional[int] = None,
width: Optional[int] = None,
target_res: Optional[int] = None,
) -> torch.Tensor:
r"""
Preprocess the image input. Accepted formats are PIL images, NumPy arrays, or PyTorch tensors. | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
rgb (`Union[torch.Tensor, PIL.Image.Image, np.ndarray]`):
The RGB input image, which can be a single image or a batch.
depth (`Union[torch.Tensor, PIL.Image.Image, np.ndarray]`):
The depth input image, which can be a single image or a batch.
height (`Optional[int]`, *optional*, defaults to `None`):
The desired height of the processed image. If `None`, defaults to the height of the input image.
width (`Optional[int]`, *optional*, defaults to `None`):
The desired width of the processed image. If `None`, defaults to the width of the input image.
target_res (`Optional[int]`, *optional*, defaults to `None`):
Target resolution for resizing the images. If specified, overrides height and width. | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Returns:
`Tuple[torch.Tensor, torch.Tensor]`:
A tuple containing the processed RGB and depth images as PyTorch tensors.
"""
supported_formats = (PIL.Image.Image, np.ndarray, torch.Tensor)
# Expand the missing dimension for 3-dimensional pytorch tensor or numpy array that represents grayscale image
if self.config.do_convert_grayscale and isinstance(rgb, (torch.Tensor, np.ndarray)) and rgb.ndim == 3:
raise Exception("This is not yet supported")
if isinstance(rgb, supported_formats):
rgb = [rgb]
depth = [depth]
elif not (isinstance(rgb, list) and all(isinstance(i, supported_formats) for i in rgb)):
raise ValueError(
f"Input is in incorrect format: {[type(i) for i in rgb]}. Currently, we only support {', '.join(supported_formats)}"
) | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
if isinstance(rgb[0], PIL.Image.Image):
if self.config.do_convert_rgb:
raise Exception("This is not yet supported")
# rgb = [self.convert_to_rgb(i) for i in rgb]
# depth = [self.convert_to_depth(i) for i in depth] #TODO define convert_to_depth
if self.config.do_resize or target_res:
height, width = self.get_default_height_width(rgb[0], height, width) if not target_res else target_res
rgb = [self.resize(i, height, width) for i in rgb]
depth = [self.resize(i, height, width) for i in depth]
rgb = self.pil_to_numpy(rgb) # to np
rgb = self.numpy_to_pt(rgb) # to pt
depth = self.depth_pil_to_numpy(depth) # to np
depth = self.numpy_to_pt(depth) # to pt | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
elif isinstance(rgb[0], np.ndarray):
rgb = np.concatenate(rgb, axis=0) if rgb[0].ndim == 4 else np.stack(rgb, axis=0)
rgb = self.numpy_to_pt(rgb)
height, width = self.get_default_height_width(rgb, height, width)
if self.config.do_resize:
rgb = self.resize(rgb, height, width)
depth = np.concatenate(depth, axis=0) if rgb[0].ndim == 4 else np.stack(depth, axis=0)
depth = self.numpy_to_pt(depth)
height, width = self.get_default_height_width(depth, height, width)
if self.config.do_resize:
depth = self.resize(depth, height, width)
elif isinstance(rgb[0], torch.Tensor):
raise Exception("This is not yet supported")
# rgb = torch.cat(rgb, axis=0) if rgb[0].ndim == 4 else torch.stack(rgb, axis=0)
# if self.config.do_convert_grayscale and rgb.ndim == 3:
# rgb = rgb.unsqueeze(1)
# channel = rgb.shape[1] | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# height, width = self.get_default_height_width(rgb, height, width)
# if self.config.do_resize:
# rgb = self.resize(rgb, height, width)
# depth = torch.cat(depth, axis=0) if depth[0].ndim == 4 else torch.stack(depth, axis=0)
# if self.config.do_convert_grayscale and depth.ndim == 3:
# depth = depth.unsqueeze(1)
# channel = depth.shape[1]
# # don't need any preprocess if the image is latents
# if depth == 4:
# return rgb, depth | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# height, width = self.get_default_height_width(depth, height, width)
# if self.config.do_resize:
# depth = self.resize(depth, height, width)
# expected range [0,1], normalize to [-1,1]
do_normalize = self.config.do_normalize
if rgb.min() < 0 and do_normalize:
warnings.warn(
"Passing `image` as torch tensor with value range in [-1,1] is deprecated. The expected value range for image tensor is [0,1] "
f"when passing as pytorch tensor or numpy Array. You passed `image` with value range [{rgb.min()},{rgb.max()}]",
FutureWarning,
)
do_normalize = False
if do_normalize:
rgb = self.normalize(rgb)
depth = self.normalize(depth)
if self.config.do_binarize:
rgb = self.binarize(rgb)
depth = self.binarize(depth)
return rgb, depth | 4 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
class IPAdapterMaskProcessor(VaeImageProcessor):
"""
Image processor for IP Adapter image masks.
Args:
do_resize (`bool`, *optional*, defaults to `True`):
Whether to downscale the image's (height, width) dimensions to multiples of `vae_scale_factor`.
vae_scale_factor (`int`, *optional*, defaults to `8`):
VAE scale factor. If `do_resize` is `True`, the image is automatically resized to multiples of this factor.
resample (`str`, *optional*, defaults to `lanczos`):
Resampling filter to use when resizing the image.
do_normalize (`bool`, *optional*, defaults to `False`):
Whether to normalize the image to [-1,1].
do_binarize (`bool`, *optional*, defaults to `True`):
Whether to binarize the image to 0/1.
do_convert_grayscale (`bool`, *optional*, defaults to be `True`):
Whether to convert the images to grayscale format.
"""
config_name = CONFIG_NAME | 5 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
@register_to_config
def __init__(
self,
do_resize: bool = True,
vae_scale_factor: int = 8,
resample: str = "lanczos",
do_normalize: bool = False,
do_binarize: bool = True,
do_convert_grayscale: bool = True,
):
super().__init__(
do_resize=do_resize,
vae_scale_factor=vae_scale_factor,
resample=resample,
do_normalize=do_normalize,
do_binarize=do_binarize,
do_convert_grayscale=do_convert_grayscale,
)
@staticmethod
def downsample(mask: torch.Tensor, batch_size: int, num_queries: int, value_embed_dim: int):
"""
Downsamples the provided mask tensor to match the expected dimensions for scaled dot-product attention. If the
aspect ratio of the mask does not match the aspect ratio of the output image, a warning is issued. | 5 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
Args:
mask (`torch.Tensor`):
The input mask tensor generated with `IPAdapterMaskProcessor.preprocess()`.
batch_size (`int`):
The batch size.
num_queries (`int`):
The number of queries.
value_embed_dim (`int`):
The dimensionality of the value embeddings.
Returns:
`torch.Tensor`:
The downsampled mask tensor.
"""
o_h = mask.shape[1]
o_w = mask.shape[2]
ratio = o_w / o_h
mask_h = int(math.sqrt(num_queries / ratio))
mask_h = int(mask_h) + int((num_queries % int(mask_h)) != 0)
mask_w = num_queries // mask_h
mask_downsample = F.interpolate(mask.unsqueeze(0), size=(mask_h, mask_w), mode="bicubic").squeeze(0)
# Repeat batch_size times
if mask_downsample.shape[0] < batch_size:
mask_downsample = mask_downsample.repeat(batch_size, 1, 1) | 5 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
mask_downsample = mask_downsample.view(mask_downsample.shape[0], -1) | 5 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
downsampled_area = mask_h * mask_w
# If the output image and the mask do not have the same aspect ratio, tensor shapes will not match
# Pad tensor if downsampled_mask.shape[1] is smaller than num_queries
if downsampled_area < num_queries:
warnings.warn(
"The aspect ratio of the mask does not match the aspect ratio of the output image. "
"Please update your masks or adjust the output size for optimal performance.",
UserWarning,
)
mask_downsample = F.pad(mask_downsample, (0, num_queries - mask_downsample.shape[1]), value=0.0)
# Discard last embeddings if downsampled_mask.shape[1] is bigger than num_queries
if downsampled_area > num_queries:
warnings.warn(
"The aspect ratio of the mask does not match the aspect ratio of the output image. "
"Please update your masks or adjust the output size for optimal performance.", | 5 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
UserWarning,
)
mask_downsample = mask_downsample[:, :num_queries] | 5 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
# Repeat last dimension to match SDPA output shape
mask_downsample = mask_downsample.view(mask_downsample.shape[0], mask_downsample.shape[1], 1).repeat(
1, 1, value_embed_dim
)
return mask_downsample | 5 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
class PixArtImageProcessor(VaeImageProcessor):
"""
Image processor for PixArt image resize and crop. | 6 | /Users/nielsrogge/Documents/python_projecten/diffusers/src/diffusers/image_processor.py |
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