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Delete app.py

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- ### 1. Imports and class names setup ###
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- import gradio as gr
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- import os
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- import torch
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-
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- from model import create_effnetb2_model
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- from timeit import default_timer as timer
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- from typing import Tuple, Dict
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-
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- # Setup class names
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-
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-
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- ### 2. Model and transforms preparation ###
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-
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- # Create EffNetB2 model
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- effnetb2, effnetb2_transforms = create_effnetb2_model(
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- num_classes=102, # len(class_names) would also work
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- )
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-
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- # Load saved weights
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- effnetb2.load_state_dict(
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- torch.load(
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- f="pretrained_effnetb2_feature_extractor_fl102.pth",
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- map_location=torch.device("cpu"), # load to CPU
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- )
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- )
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-
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- ### 3. Predict function ###
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-
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- # Create predict function
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- def predict(img) -> Tuple[Dict, float]:
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- """Transforms and performs a prediction on img and returns prediction and time taken.
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- """
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- # Start the timer
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- start_time = timer()
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-
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- # Transform the target image and add a batch dimension
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- img = effnetb2_transforms(img).unsqueeze(0)
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-
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- # Put model into evaluation mode and turn on inference mode
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- effnetb2.eval()
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- with torch.inference_mode():
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- # Pass the transformed image through the model and turn the prediction logits into prediction probabilities
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- pred_probs = torch.softmax(effnetb2(img), dim=1)
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-
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- # Create a prediction label and prediction probability dictionary for each prediction class (this is the required format for Gradio's output parameter)
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- pred_labels_and_probs = {class_names[i]: float(pred_probs[0][i]) for i in range(len(class_names))}
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-
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- # Calculate the prediction time
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- pred_time = round(timer() - start_time, 5)
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-
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- # Return the prediction dictionary and prediction time
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- return pred_labels_and_probs, pred_time
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-
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- ### 4. Gradio app ###
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-
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- # Create title, description and article strings
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- title = "Flofi Mini"
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- description = "An EfficientNetB2 feature extractor computer vision model to classify images of 102 flower species."
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- article = "Created by Haydar Uçar."
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-
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- # Create examples list from "examples/" directory
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-
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-
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- # Create the Gradio demo
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- demo = gr.Interface(fn=predict, # mapping function from input to output
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- inputs=gr.Image(type="pil"), # what are the inputs?
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- outputs=[gr.Label(num_top_classes=3, label="Predictions"), # what are the outputs?
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- gr.Number(label="Prediction time (s)")], # our fn has two outputs, therefore we have two outputs
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- title=title,
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- description=description,
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- article=article)
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-
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- # Launch the demo!
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- demo.launch()