ImageMagick scripts

mogrify-recursive.py

#!/usr/bin/env python3
# coding=utf-8

import sys
from os import walk
from os.path import join
from subprocess import Popen

ROOTFP = sys.argv[1]
PERCENTAGE = sys.argv[2]

CONVERT_CMD = ('mogrify', '-verbose', '-resize', PERCENTAGE+'%')

def get_images(rootfp):
    for relpath, dirs, files in walk(rootfp):
        for f in files:
            yield join(relpath, f)

for i in get_images(sys.argv[1]):
    cmd = tuple(CONVERT_CMD + (i,))
    with Popen(cmd) as proc:
        proc.wait()

Test