UniqAI/gaussian-splatting
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moved magick to PIL as even singlethreaded is 4x the speed in resizing that magick

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xvdp 2023-10-26 04:25:56 -07:00
parent 414b553ef1
commit 7857f24260
1 changed files with 14 additions and 27 deletions
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41
convert.py
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@ -8,12 +8,16 @@
#
# For inquiries contact george.drettakis@inria.fr
#
# xvdp removed magick, it is 3x slower than single threaded PIL for resizing
import os
import logging
from argparse import ArgumentParser
import shutil
from PIL import Image
# 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')
@ -25,7 +29,7 @@ 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:
@ -87,38 +91,21 @@ for file in files:
destination_file = os.path.join(args.source_path, "sparse", "0", file)
shutil.move(source_file, destination_file)
if(args.resize):
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)
for div in [2,4,8]:
os.makedirs(args.source_path + f"/images_{div}", 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:
for j, file in enumerate(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)
im = Image.open(source_file)
logging.info(f"processing image [{j}/{len(files)}] {source_file}")
for div in [2,4,8]:
destination_file = os.path.join(args.source_path, f"images_{div}", file)
im.resize([round(i/div) for i in im.size], Image.BICUBIC).save(destination_file)
print("Done.")