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README.md
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---
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license: mit
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tags:
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- image-classification
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- pytorch
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- cats-vs-dogs
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- computer-vision
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datasets:
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- microsoft/cats_vs_dogs
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metrics:
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- accuracy
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---
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# Cat vs Dog Classifier
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This model is a simple CNN (Convolutional Neural Network) trained to classify images as either cats or dogs.
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## Model Description
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- **Architecture**: Custom CNN with 3 convolutional layers and 3 fully connected layers
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- **Input**: 224x224 RGB images
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- **Output**: Binary classification (Cat or Dog)
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- **Framework**: PyTorch
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## Training Data
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The model was trained on the [microsoft/cats_vs_dogs](https://huggingface.co/datasets/microsoft/cats_vs_dogs) dataset from Hugging Face.
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## Usage
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```python
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import torch
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from PIL import Image
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from torchvision import transforms
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# Load model
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model = CatDogClassifier()
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model.load_state_dict(torch.load('model_weights.pth'))
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model.eval()
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# Prepare image
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transform = transforms.Compose([
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transforms.Resize((224, 224)),
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transforms.ToTensor(),
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transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225])
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])
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image = Image.open('your_image.jpg').convert('RGB')
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image_tensor = transform(image).unsqueeze(0)
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# Predict
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with torch.no_grad():
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outputs = model(image_tensor)
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_, predicted = torch.max(outputs.data, 1)
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classes = ['Cat', 'Dog']
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print(f"Prediction: {classes[predicted.item()]}")
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```
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## Training Procedure
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- **Optimizer**: Adam with learning rate 0.001
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- **Loss Function**: CrossEntropyLoss
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- **Batch Size**: 32
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- **Epochs**: 10
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- **Data Augmentation**: Random horizontal flip, rotation, and color jitter
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## Performance
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The model achieves approximately 85-90% accuracy on the validation set (results may vary based on training run).
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## Limitations
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- Model is trained specifically on cats and dogs only
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- Performance may degrade on images with multiple animals
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- Works best with clear, well-lit images
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- Input images must be resized to 224x224
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## License
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MIT License
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## Author
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Created as an educational project for learning image classification with PyTorch.
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