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Delete imageclassifier.py
Browse files- imageclassifier.py +0 -139
imageclassifier.py
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import numpy as np
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import cv2
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from tensorflow.keras.applications import ResNet50
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from tensorflow.keras.applications.resnet50 import preprocess_input
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from tensorflow.keras.preprocessing import image
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from skimage.metrics import structural_similarity as ssim
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import os
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import argparse
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class ImageCharacterClassifier:
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def __init__(self, similarity_threshold=0.7):
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# Initialize ResNet50 model without top classification layer
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self.model = ResNet50(weights='imagenet', include_top=False, pooling='avg')
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self.similarity_threshold = similarity_threshold
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def load_and_preprocess_image(self, image_path, target_size=(224, 224)):
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# Load and preprocess image for ResNet50
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img = image.load_img(image_path, target_size=target_size)
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img_array = image.img_to_array(img)
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img_array = np.expand_dims(img_array, axis=0)
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img_array = preprocess_input(img_array)
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return img_array
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def extract_features(self, image_path):
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# Extract deep features using ResNet50
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preprocessed_img = self.load_and_preprocess_image(image_path)
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features = self.model.predict(preprocessed_img)
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return features
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def calculate_ssim(self, img1_path, img2_path):
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# Calculate SSIM between two images
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img1 = cv2.imread(img1_path)
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img2 = cv2.imread(img2_path)
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# Convert to grayscale if images are in color
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if len(img1.shape) == 3:
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img1 = cv2.cvtColor(img1, cv2.COLOR_BGR2GRAY)
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if len(img2.shape) == 3:
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img2 = cv2.cvtColor(img2, cv2.COLOR_BGR2GRAY)
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# Resize images to same dimensions
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img2 = cv2.resize(img2, (img1.shape[1], img1.shape[0]))
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score = ssim(img1, img2)
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return score
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def classify_images(self, reference_image_path, image_folder_path):
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# Extract features from reference image
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reference_features = self.extract_features(reference_image_path)
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results = []
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# Process each image in the folder
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for image_name in os.listdir(image_folder_path):
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if image_name.lower().endswith(('.png', '.jpg', '.jpeg')):
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image_path = os.path.join(image_folder_path, image_name)
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try:
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# Calculate SSIM
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ssim_score = self.calculate_ssim(reference_image_path, image_path)
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# Extract features and calculate similarity
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image_features = self.extract_features(image_path)
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# Calculate cosine similarity
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feature_similarity = np.dot(reference_features.flatten(),
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image_features.flatten()) / (
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np.linalg.norm(reference_features) * np.linalg.norm(image_features))
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# Give more weight to feature similarity
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combined_similarity = (0.3 * ssim_score + 0.7 * feature_similarity)
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# Classify based on similarity threshold
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is_similar = combined_similarity >= self.similarity_threshold
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results.append({
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'image_name': image_name,
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'ssim_score': ssim_score,
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'feature_similarity': feature_similarity,
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'combined_similarity': combined_similarity,
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'is_similar': is_similar
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})
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except Exception as e:
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print(f"Error processing {image_name}: {str(e)}")
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continue
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return results
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def main():
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# Create argument parser
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parser = argparse.ArgumentParser(description='Image Character Classification')
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parser.add_argument('--reference', '-r',
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type=str,
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required=True,
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help='Path to reference image')
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parser.add_argument('--folder', '-f',
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type=str,
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required=True,
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help='Path to folder containing images to compare')
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parser.add_argument('--threshold', '-t',
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type=float,
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default=0.5, # Lowered the default threshold
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help='Similarity threshold (default: 0.5)')
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# Parse arguments
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args = parser.parse_args()
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# Initialize classifier
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classifier = ImageCharacterClassifier(similarity_threshold=args.threshold)
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# Check if paths exist
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if not os.path.exists(args.reference):
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print(f"Error: Reference image not found at {args.reference}")
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return
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if not os.path.exists(args.folder):
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print(f"Error: Image folder not found at {args.folder}")
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return
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# Perform classification
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results = classifier.classify_images(args.reference, args.folder)
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# Sort results by similarity score
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results.sort(key=lambda x: x['combined_similarity'], reverse=True)
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# Print results
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print("\nResults sorted by similarity (highest to lowest):")
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print("-" * 50)
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for result in results:
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print(f"\nImage: {result['image_name']}")
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print(f"SSIM Score: {result['ssim_score']:.3f}")
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print(f"Feature Similarity: {result['feature_similarity']:.3f}")
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print(f"Combined Similarity: {result['combined_similarity']:.3f}")
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print(f"Is Similar: {result['is_similar']}")
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print("-" * 30)
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if __name__ == "__main__":
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main()
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