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import os | |
import json | |
from PIL import Image | |
import numpy as np | |
import tensorflow as tf | |
import streamlit as st | |
import matplotlib.pyplot as plt | |
# Load the pre-trained model and class indices | |
working_dir = os.path.dirname(os.path.abspath(__file__)) | |
model_path = "crop_disease_detection_model.h5" | |
model = tf.keras.models.load_model(model_path) | |
class_indices = json.load(open(f"{working_dir}/class_indices.json")) | |
# Function to Load and Preprocess the Image using Pillow | |
def load_and_preprocess_image(image_path, target_size=(224, 224)): | |
img = Image.open(image_path) | |
img = img.resize(target_size) | |
img_array = np.array(img) | |
img_array = np.expand_dims(img_array, axis=0) | |
img_array = img_array.astype('float32') / 255. | |
return img_array | |
# Function to Predict the Class of an Image | |
def predict_image_class(model, img_array, class_indices): | |
predictions = model.predict(img_array) | |
predicted_class_index = np.argmax(predictions, axis=1)[0] | |
predicted_class_name = class_indices[str(predicted_class_index)] | |
confidence_score = predictions[0][predicted_class_index] | |
return predicted_class_name, confidence_score | |
# Streamlit App | |
st.title('Plant Disease Classifier') | |
# Upload and preprocess the image only once | |
uploaded_image = st.file_uploader("Upload an image...", type=["jpg", "jpeg", "png"]) | |
if uploaded_image is not None: | |
img_array = load_and_preprocess_image(uploaded_image) | |
st.session_state.img_array = img_array | |
st.session_state.image_uploaded = True | |
# Display tabs for Identification and Visualization side by side | |
col1, col2 = st.columns(2) | |
with col1: | |
if st.button('Identification'): | |
st.session_state.tab_selected = 'Identification' | |
with col2: | |
if st.button('Visualization'): | |
st.session_state.tab_selected = 'Visualization' | |
selected_tab = st.session_state.get('tab_selected', 'Identification') | |
if st.session_state.get('image_uploaded', False): | |
if selected_tab == 'Identification': | |
st.header('Plant Disease Identification') | |
st.image(uploaded_image, caption='Uploaded Image', use_column_width=False) | |
predicted_class, confidence_score = predict_image_class(model, img_array, class_indices) | |
st.write(f'Prediction: {predicted_class} ({confidence_score:.2f} confidence)') | |
elif selected_tab == 'Visualization': | |
st.header('Confidence Scores Visualization') | |
plt.figure(figsize=(12, 6)) # Smaller graph size | |
plt.bar(class_indices.values(), model.predict(img_array)[0]) | |
plt.xlabel('Class') | |
plt.ylabel('Confidence Score') | |
plt.xticks(rotation=90, ha='right') | |
plt.title('Confidence Scores for Predicted Classes') | |
st.pyplot(plt) | |