Resizes a set of images found in a directory|-|{"files":{"resize.py":{"env":"plain"}},"tag":"Python"}

resize.py

# Author: Chris Gwilliams
# Date: 22/7/14
# Usage: python resize.py [dir]
# Requires: PIL
# Purpose grabs every image in specified dir (and subdirs) and resizes according to the size variable
import os, sys
import Image

# set your size here, PIL will try and make it a bit smarter
size = 1280, 720
for root,dirs,files in os.walk(sys.argv[1]):
	for f in files:
	    	if(f.lower().endswith('jpg') or f.lower().endswith('.png')):
			infile = root + '/' + f
			if('thumbnail.png' not in infile):
				outfile = root + '/' + f + ".thumbnail.png"
				if infile != outfile:
					im = Image.open(infile)
					width, height = im.size
					if height > width:
						size = 720, 1280
					im.thumbnail(size, Image.ANTIALIAS)
					im.save(outfile, 'PNG')