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app.py
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# app.py
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__all__ = ['bird', 'learn', 'classify_image', 'categories', 'image', 'label', 'examples', 'intf']
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# Load categories from labels.txt
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with open("labels.txt", "r") as file:
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categories = [line.strip() for line in file.readlines()]
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# Import FastAI, PyTorch, and Gradio
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from fastai.vision.all import *
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import gradio as gr
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import torch
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from torchvision.models import resnet50
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# ✅ Define Model Architecture
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def create_model():
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model = resnet50(weights=None) # No pre-trained weights
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num_features = model.fc.in_features # Get input features of the final layer
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model.fc = torch.nn.Linear(num_features, len(categories)) # Replace final layer
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return model
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# ✅ Load Model Weights Safely
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model = create_model()
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model.load_state_dict(torch.load("model_weights.pth", map_location="cpu"))
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model.eval() # Set to evaluation mode
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# ✅ Wrap in a FastAI Learner (Even Without DataLoaders)
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learn = Learner(dls=None, model=model)
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# ✅ Define the Classification Function
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def classify_image(img):
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preds, idx, probs = learn.predict(img)
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return dict(zip(categories, map(float, probs)))
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# ✅ Gradio UI Components
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image = gr.Image()
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label = gr.Label(num_top_classes=3)
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# ✅ Create and Launch Gradio Interface
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intf = gr.Interface(fn=classify_image, inputs=image, outputs=label)
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intf.launch(inline=False, share=True)
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