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Update Model/centroid_app.py
Browse files- Model/centroid_app.py +80 -80
Model/centroid_app.py
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import pickle
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import random
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import numpy as np
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import cv2
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from tensorflow.keras import models, layers
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# Load the trained model architecture
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def create_resnet18():
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model = models.Sequential()
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model.add(layers.Conv2D(64, (3, 3), activation='relu', padding='same', input_shape=(32, 32, 3)))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Conv2D(64, (3, 3), activation='relu', padding='same'))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Conv2D(128, (3, 3), activation='relu', padding='same'))
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model.add(layers.Conv2D(128, (3, 3), activation='relu', padding='same'))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Conv2D(256, (3, 3), activation='relu', padding='same'))
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model.add(layers.Conv2D(256, (3, 3), activation='relu', padding='same'))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Flatten())
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model.add(layers.Dense(512, activation='relu'))
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model.add(layers.Dense(10, activation='softmax'))
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return model
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# Load the pretrained weights
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def load_pretrained_weights(model, weights_path):
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model.load_weights(weights_path)
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# Function to unpickle a file
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def unpickle(file):
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with open(file, 'rb') as fo:
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dict = pickle.load(fo, encoding='bytes')
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return dict
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# Function to load images from the unpickled data batch file of a specific class
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def load_class_images(class_index, train_batches):
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images = []
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for batch in train_batches:
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if b'data' in batch and b'labels' in batch:
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data = batch[b'data']
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labels = batch[b'labels']
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for i, label in enumerate(labels):
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if label == class_index:
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img = data[i].reshape(3, 32, 32).transpose(1, 2, 0) # Reshape and transpose the image
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images.append(img)
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return images
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# Function to calculate the distance of the mean embeddings with a query image
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def classify_query(query_image, model, mean_embeddings):
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query_embedding = model.predict(np.expand_dims(query_image, axis=0))
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distances = [np.linalg.norm(query_embedding.flatten() - mean_embedding) for mean_embedding in mean_embeddings]
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predicted_class = np.argmin(distances)
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return predicted_class
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def retrieve(query_image,k=3):
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model = create_resnet18()
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load_pretrained_weights(model, 'Model
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mean_embeddings = pickle.load(open('Model
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# query_image_path = '/content/airplane_8925.png'
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# query_image = cv2.imread(query_image_path)
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query_image = cv2.resize(query_image, (32, 32)) / 255.0 # Resize and normalize the image
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predicted_class = classify_query(query_image, model, mean_embeddings)
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# print("Predicted Class:", predicted_class)
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# Load random images of the predicted class
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train_batches = [unpickle(rf"Model
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class_images = load_class_images(predicted_class, train_batches)
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if class_images:
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random_images = random.sample(class_images, k) # Select 3 random images
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return random_images
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else:
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print("No images found for the predicted class.")
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import pickle
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import random
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import numpy as np
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import cv2
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from tensorflow.keras import models, layers
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# Load the trained model architecture
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def create_resnet18():
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model = models.Sequential()
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model.add(layers.Conv2D(64, (3, 3), activation='relu', padding='same', input_shape=(32, 32, 3)))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Conv2D(64, (3, 3), activation='relu', padding='same'))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Conv2D(128, (3, 3), activation='relu', padding='same'))
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model.add(layers.Conv2D(128, (3, 3), activation='relu', padding='same'))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Conv2D(256, (3, 3), activation='relu', padding='same'))
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model.add(layers.Conv2D(256, (3, 3), activation='relu', padding='same'))
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model.add(layers.MaxPooling2D((2, 2)))
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model.add(layers.Flatten())
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model.add(layers.Dense(512, activation='relu'))
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model.add(layers.Dense(10, activation='softmax'))
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return model
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# Load the pretrained weights
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def load_pretrained_weights(model, weights_path):
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model.load_weights(weights_path)
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# Function to unpickle a file
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def unpickle(file):
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with open(file, 'rb') as fo:
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dict = pickle.load(fo, encoding='bytes')
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return dict
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# Function to load images from the unpickled data batch file of a specific class
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def load_class_images(class_index, train_batches):
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images = []
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for batch in train_batches:
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if b'data' in batch and b'labels' in batch:
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data = batch[b'data']
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labels = batch[b'labels']
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for i, label in enumerate(labels):
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if label == class_index:
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img = data[i].reshape(3, 32, 32).transpose(1, 2, 0) # Reshape and transpose the image
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images.append(img)
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return images
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# Function to calculate the distance of the mean embeddings with a query image
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def classify_query(query_image, model, mean_embeddings):
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query_embedding = model.predict(np.expand_dims(query_image, axis=0))
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distances = [np.linalg.norm(query_embedding.flatten() - mean_embedding) for mean_embedding in mean_embeddings]
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predicted_class = np.argmin(distances)
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return predicted_class
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def retrieve(query_image,k=3):
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model = create_resnet18()
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load_pretrained_weights(model, 'Model/pretrained_model_weights.h5')
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mean_embeddings = pickle.load(open('Model/data/mean_embeddings.pkl', 'rb'))
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# query_image_path = '/content/airplane_8925.png'
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# query_image = cv2.imread(query_image_path)
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query_image = cv2.resize(query_image, (32, 32)) / 255.0 # Resize and normalize the image
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predicted_class = classify_query(query_image, model, mean_embeddings)
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# print("Predicted Class:", predicted_class)
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# Load random images of the predicted class
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train_batches = [unpickle(rf"Model/data/data_batch_{i}") for i in range(1,6)]
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class_images = load_class_images(predicted_class, train_batches)
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if class_images:
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random_images = random.sample(class_images, k) # Select 3 random images
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return random_images
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else:
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print("No images found for the predicted class.")
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