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import argparse |
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import os |
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import json |
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from PIL import Image |
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import multiprocessing as mp |
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import warnings |
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warnings.filterwarnings('ignore') |
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def check_image(image_path): |
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try: |
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Image.open(image_path) |
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return True |
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except Exception as e: |
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print(f"Error details: {str(e)}") |
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return False |
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def check_image_path(image_info): |
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data_path, image_path_list = image_info |
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valid_image_paths = [] |
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for image_path in image_path_list: |
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if check_image(os.path.join(data_path, image_path)): |
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valid_image_paths.append(image_path) |
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return valid_image_paths |
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def load_image_path(image_info): |
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folder_name, data_path, image_extensions = image_info |
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print(folder_name) |
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folder_path = os.path.join(data_path, folder_name) |
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local_image_paths = [] |
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for image_path in os.listdir(folder_path): |
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_, file_extension = os.path.splitext(image_path) |
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if file_extension.lower() in image_extensions: |
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image_path_full = os.path.join(folder_name, image_path) |
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local_image_paths.append(image_path_full) |
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return local_image_paths |
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def main(args): |
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data_path = args.data_path |
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image_extensions = ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.tiff', '.webp'] |
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num_processes = 47 |
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work_list = [('openimages_{:0>4}'.format(idx), data_path, image_extensions) for idx in range(1, 48)] |
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with mp.Pool(processes=num_processes) as pool: |
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results = pool.map(load_image_path, work_list) |
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image_paths = [image_path for sublist in results for image_path in sublist] |
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print('image_paths is loaded') |
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num_processes = max(mp.cpu_count() // 2, 4) |
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unit = len(image_paths) // num_processes |
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work_list = [(data_path, image_paths[idx*unit:(idx+1)*unit]) for idx in range(num_processes)] |
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with mp.Pool(processes=num_processes) as pool: |
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results = pool.map(check_image_path, work_list) |
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valid_image_paths = [image_path for sublist in results for image_path in sublist] |
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print('image_paths is checked') |
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output_json_file_path = os.path.join(data_path, 'image_paths.json') |
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with open(output_json_file_path, 'w') as outfile: |
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json.dump(valid_image_paths, outfile, indent=4) |
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print(f"Image paths have been saved to {output_json_file_path}") |
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if __name__ == "__main__": |
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parser = argparse.ArgumentParser() |
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parser.add_argument("--data-path", type=str, required=True) |
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args = parser.parse_args() |
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main(args) |
