---
license: apache-2.0
pipeline_tag: image-classification
tags:
- aesthetic
---

# THE INPUT IMAGE MUST HAVE `RGB` CHANNELS. IT WILL NOT WORK WITH `RGBA` CHANNELS!

## Usage
```python
import torch
import torch.nn as nn
import torch.optim as optim
import torchvision.transforms as transforms
from PIL import Image

device = torch.device("cuda" if torch.cuda.is_available() else "cpu")

class CNN(nn.Module):
    def __init__(self, hidden_size=512):
        super(CNN, self).__init__()
        self.conv1 = nn.Conv2d(3, 16, kernel_size=3, padding=1)
        self.conv2 = nn.Conv2d(16, 32, kernel_size=3, padding=1)
        self.fc1 = nn.Linear(32 * 192 * 192, hidden_size)
        self.fc2 = nn.Linear(hidden_size, 2)

    def forward(self, x):
        x = torch.relu(self.conv1(x))
        x = torch.max_pool2d(x, kernel_size=2, stride=2)
        x = torch.relu(self.conv2(x))
        x = torch.max_pool2d(x, kernel_size=2, stride=2)
        x = x.view(-1, 32 * 192 * 192)
        x = torch.relu(self.fc1(x))
        x = self.fc2(x)
        return x

model = CNN().to(device).half()
criterion = nn.CrossEntropyLoss()
optimizer = optim.Adam(model.parameters(), lr=2.5e-5)

transform = transforms.Compose([
    transforms.Resize((768, 768)),
    transforms.ToTensor(),
    transforms.Normalize((0.5, 0.5, 0.5), (0.5, 0.5, 0.5))
])

def infer(model, image_path):
    model.eval()
    image = Image.open(image_path)
    image = transform(image).unsqueeze(0).to(device).half()
    with torch.no_grad():
        output = model(image)
    predicted_class = torch.argmax(output).item()
    return predicted_class

checkpoint = torch.load('half_precision_model_checkpoint.pth')
model.load_state_dict(checkpoint['model_state_dict'])
optimizer.load_state_dict(checkpoint['optimizer_state_dict'])
epoch = checkpoint['epoch']
loss = checkpoint['loss']

image_path = 'good.jpg'
predicted_class = infer(model, image_path)
if int(predicted_class) == 0:
    print('Predicted class: Bad Image')
elif int(predicted_class) == 1:
    print('Predicted class: Good Image')
```