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#!/usr/bin/env python
# coding=utf-8
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import numpy as np
import torch
from ..models.clipseg import CLIPSegForImageSegmentation
from ..utils import is_vision_available, requires_backends
from .base import PipelineTool
if is_vision_available():
from PIL import Image
class ImageSegmentationTool(PipelineTool):
description = (
"This is a tool that creates a segmentation mask of an image according to a label. It cannot create an image."
"It takes two arguments named `image` which should be the original image, and `label` which should be a text "
"describing the elements what should be identified in the segmentation mask. The tool returns the mask."
)
default_checkpoint = "CIDAS/clipseg-rd64-refined"
name = "image_segmenter"
model_class = CLIPSegForImageSegmentation
inputs = ["image", "text"]
outputs = ["image"]
def __init__(self, *args, **kwargs):
requires_backends(self, ["vision"])
super().__init__(*args, **kwargs)
def encode(self, image: "Image", label: str):
return self.pre_processor(text=[label], images=[image], padding=True, return_tensors="pt")
def forward(self, inputs):
with torch.no_grad():
logits = self.model(**inputs).logits
return logits
def decode(self, outputs):
array = outputs.cpu().detach().numpy()
array[array <= 0] = 0
array[array > 0] = 1
return Image.fromarray((array * 255).astype(np.uint8))
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