app.py

import torch
import torchvision.transforms as transforms
import gradio as gr
from PIL import Image
from model import SimpleCNN

def preprocess_image(image):
    transform = transforms.Compose([
        transforms.Resize((32, 32)),  
        transforms.ToTensor(),
        transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225]),
    ])
    image = Image.fromarray(image)  
    image = transform(image)
    image = image.unsqueeze(0) 
    return image

def predict_image(model, image):
    
    if torch.sum(image) == 0:
        return 404  
    
    model.eval()
    with torch.no_grad():
        output = model(image)

    _, predicted = torch.max(output.data, 1)
    return predicted.item()
    
def main():
   
    model = SimpleCNN()
    model.load_state_dict(torch.load('cifar10_model.pth'))
    model.eval()

    iface = gr.Interface(
        fn=lambda img: predict_image(model, preprocess_image(img)),
        inputs=gr.Image(),  
        outputs="label",
        live=True,
    )
    
    iface.launch()

if __name__ == "__main__":
    main()