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Delete imageApp(ImageClassificationModel).py
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imageApp(ImageClassificationModel).py
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## create streamlit app
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# import required libraries and modules
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import json
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import numpy as np
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import matplotlib.pyplot as plt
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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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from torchvision.models import densenet121
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import streamlit as st
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# define prediction function
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def predict(image):
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# load DL model
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model = densenet121(pretrained=True)
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model.eval()
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# load classes
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with open('imagenet_class_index.json', 'r') as f:
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classes = json.load(f)
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# preprocess image
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preprocess = transforms.Compose([
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transforms.Resize(256),
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transforms.CenterCrop(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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input_tensor = preprocess(input_image)
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input_batch = input_tensor.unsqueeze(0) # create a mini-batch as expected by the model
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# get prediction
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with torch.no_grad():
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output = model(input_batch)
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pred = torch.nn.functional.softmax(output[0], dim=0).cpu().numpy()
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# return confidence and label
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confidence = round(max(pred)*100, 2)
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label = classes[str(np.argmax(pred))][1]
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return confidence, label
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# define image file uploader
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image = st.file_uploader("Upload image here")
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# define button for getting prediction
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if image is not None and st.button("Get prediction"):
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# load image using PIL
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input_image = Image.open(image)
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# show image
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st.image(input_image, use_column_width=True)
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# get prediction
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confidence, label = predict(input_image)
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# print results
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"Model is", confidence, "% confident that this image is of a", label
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