resize.py --width=320 --height=480 --fileoder=true --output=./out_dir src_dir/*

画像リサイズと、連番ファイル名へリネーム

#!/usr/bin/env python
# -*- encoding:utf-8 -*-
from __future__ import division
import sys, os
import math
import re
from commands import getstatusoutput
from optparse import OptionParser, OptionGroup

def execute(command):
    status, output = 0, ''
    print command
    status, output = getstatusoutput(command)
    print output
    if not status == 0:
        sys.exit(status)
    return status

def imformat(program, srcs, dst, params):
    command = "%s %s " % (program, ' '.join(srcs))
    for key, val in params:
        command += "-%s %s " % (key, val)
    command += dst
    return command

def convertize(src, dst, params):
    return imformat('convert', [src], dst, params)

def resize_command(file, dst, resizeWidth, resizeHeight):
    params = [('resize', "%dx%d!"%(resizeWidth, resizeHeight))]
    return convertize(file, dst, params)

def resize(files, options):
    if options.width is None or options.width <= 0 or options.height is None or options.height <= 0 or options.output is None:
        print "--width --height --output を正しく設定してください。"
        sys.exit(1)
    i = 0
    for file in files:
        i = i + 1
        root, ext = os.path.splitext(file)
        if ext == ".jpg" or ext == ".JPG" or ext == ".png" or ext == ".PNG":
            file_name = ''
            if options.fileoder is not None and options.fileoder == 'true':
                file_name = '%03d'%i + ext
            else:
                file_name = os.path.basename(file)
            output_file = options.output + '/' + file_name
            command = resize_command(file, output_file, options.width, options.height)
            execute(command)

if __name__ == '__main__':
    usage = "usage: %prog [options] [resize]"
    p = OptionParser(usage=usage, conflict_handler="resolve")
    resize_group = OptionGroup(p, "resize options")
    resize_group.add_option("--width", dest="width", action="store", type="int", default=None)
    resize_group.add_option("--height", dest="height", action="store", type="int", default=None)
    resize_group.add_option("--fileoder", dest="fileoder", action="store", default=None)
    resize_group.add_option("--output", dest="output", action="store", default=None)
    p.add_option_group(resize_group)

    (options, args) = p.parse_args()

    def die():
        print p.print_help()
        sys.exit(1)
        
    if not len(args) > 0:
        die()

    files = args[0:]
    print files, options 
    resize(files, options)