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| # | |
| # Copyright (C) 2023, Inria | |
| # GRAPHDECO research group, https://team.inria.fr/graphdeco | |
| # All rights reserved. | |
| # | |
| # This software is free for non-commercial, research and evaluation use | |
| # under the terms of the LICENSE.md file. | |
| # | |
| # For inquiries contact george.drettakis@inria.fr | |
| # | |
| import os | |
| import logging | |
| from argparse import ArgumentParser | |
| import shutil | |
| # This Python script is based on the shell converter script provided in the MipNerF 360 repository. | |
| parser = ArgumentParser("Colmap converter") | |
| parser.add_argument("--no_gpu", action='store_true') | |
| parser.add_argument("--skip_matching", action='store_true') | |
| parser.add_argument("--source_path", "-s", required=True, type=str) | |
| parser.add_argument("--camera", default="OPENCV", type=str) | |
| parser.add_argument("--colmap_executable", default="", type=str) | |
| parser.add_argument("--resize", action="store_true") | |
| parser.add_argument("--magick_executable", default="", type=str) | |
| args = parser.parse_args() | |
| colmap_command = '"{}"'.format(args.colmap_executable) if len(args.colmap_executable) > 0 else "colmap" | |
| magick_command = '"{}"'.format(args.magick_executable) if len(args.magick_executable) > 0 else "magick" | |
| use_gpu = 1 if not args.no_gpu else 0 | |
| if not args.skip_matching: | |
| os.makedirs(args.source_path + "/distorted/sparse", exist_ok=True) | |
| ## Feature extraction | |
| feat_extracton_cmd = colmap_command + " feature_extractor "\ | |
| "--database_path " + args.source_path + "/distorted/database.db \ | |
| --image_path " + args.source_path + "/input \ | |
| --ImageReader.single_camera 1 \ | |
| --ImageReader.camera_model " + args.camera + " \ | |
| --SiftExtraction.use_gpu " + str(use_gpu) | |
| exit_code = os.system(feat_extracton_cmd) | |
| if exit_code != 0: | |
| logging.error(f"Feature extraction failed with code {exit_code}. Exiting.") | |
| exit(exit_code) | |
| ## Feature matching | |
| feat_matching_cmd = colmap_command + " exhaustive_matcher \ | |
| --database_path " + args.source_path + "/distorted/database.db \ | |
| --SiftMatching.use_gpu " + str(use_gpu) | |
| exit_code = os.system(feat_matching_cmd) | |
| if exit_code != 0: | |
| logging.error(f"Feature matching failed with code {exit_code}. Exiting.") | |
| exit(exit_code) | |
| ### Bundle adjustment | |
| # The default Mapper tolerance is unnecessarily large, | |
| # decreasing it speeds up bundle adjustment steps. | |
| mapper_cmd = (colmap_command + " mapper \ | |
| --database_path " + args.source_path + "/distorted/database.db \ | |
| --image_path " + args.source_path + "/input \ | |
| --output_path " + args.source_path + "/distorted/sparse \ | |
| --Mapper.ba_global_function_tolerance=0.000001") | |
| exit_code = os.system(mapper_cmd) | |
| if exit_code != 0: | |
| logging.error(f"Mapper failed with code {exit_code}. Exiting.") | |
| exit(exit_code) | |
| ### Image undistortion | |
| ## We need to undistort our images into ideal pinhole intrinsics. | |
| img_undist_cmd = (colmap_command + " image_undistorter \ | |
| --image_path " + args.source_path + "/input \ | |
| --input_path " + args.source_path + "/distorted/sparse/0 \ | |
| --output_path " + args.source_path + "\ | |
| --output_type COLMAP") | |
| exit_code = os.system(img_undist_cmd) | |
| if exit_code != 0: | |
| logging.error(f"Mapper failed with code {exit_code}. Exiting.") | |
| exit(exit_code) | |
| files = os.listdir(args.source_path + "/sparse") | |
| os.makedirs(args.source_path + "/sparse/0", exist_ok=True) | |
| # Copy each file from the source directory to the destination directory | |
| for file in files: | |
| if file == '0': | |
| continue | |
| source_file = os.path.join(args.source_path, "sparse", file) | |
| destination_file = os.path.join(args.source_path, "sparse", "0", file) | |
| shutil.move(source_file, destination_file) | |
| if(args.resize): | |
| print("Copying and resizing...") | |
| # Resize images. | |
| os.makedirs(args.source_path + "/images_2", exist_ok=True) | |
| os.makedirs(args.source_path + "/images_4", exist_ok=True) | |
| os.makedirs(args.source_path + "/images_8", exist_ok=True) | |
| # Get the list of files in the source directory | |
| files = os.listdir(args.source_path + "/images") | |
| # Copy each file from the source directory to the destination directory | |
| for file in files: | |
| source_file = os.path.join(args.source_path, "images", file) | |
| destination_file = os.path.join(args.source_path, "images_2", file) | |
| shutil.copy2(source_file, destination_file) | |
| exit_code = os.system(magick_command + " mogrify -resize 50% " + destination_file) | |
| if exit_code != 0: | |
| logging.error(f"50% resize failed with code {exit_code}. Exiting.") | |
| exit(exit_code) | |
| destination_file = os.path.join(args.source_path, "images_4", file) | |
| shutil.copy2(source_file, destination_file) | |
| exit_code = os.system(magick_command + " mogrify -resize 25% " + destination_file) | |
| if exit_code != 0: | |
| logging.error(f"25% resize failed with code {exit_code}. Exiting.") | |
| exit(exit_code) | |
| destination_file = os.path.join(args.source_path, "images_8", file) | |
| shutil.copy2(source_file, destination_file) | |
| exit_code = os.system(magick_command + " mogrify -resize 12.5% " + destination_file) | |
| if exit_code != 0: | |
| logging.error(f"12.5% resize failed with code {exit_code}. Exiting.") | |
| exit(exit_code) | |
| print("Done.") | |