shrink-images.py

#requires pyvips and ruby-image-processing on ubuntu
import pyvips
import argparse
import pathlib
parser = argparse.ArgumentParser(description='resize images ')
parser.add_argument('images', metavar='file', nargs='+',
                    help='paths to files to shrink')
args = parser.parse_args()
for filepath in args.images:
    image = pyvips.Image.new_from_file(filepath, access='sequential')
    image = image.colourspace('srgb')
    image = image.resize( 0.5 )
    source_path = pathlib.Path(filepath)
    new_name = source_path.parent.joinpath(source_path.name.replace(source_path.suffix,'')+'_smol'+source_path.suffix).as_posix()
    image.write_to_file(new_name)