mac下图片批量处理

布凡3370

转自
https://github.com/zhasm/scripts/raw/master/resize.py


#!/usr/bin/python
# -*- coding: utf-8 -*-
#
#author:         rex
#blog:           http://iregex.org
#filename        resize.py
#created:        2011-01-05 21:35
import re
from sys import exit
from optparse import OptionParser
from os.path import abspath
from os.path import dirname as dirname
from os.path import join as pathjoin
try:
import Image
except:
print "Please install PIL module for python before using this script"
exit(1)

def getPath(sufix=""):
'''get absolute path of the current dir'''
path = dirname(__file__)
try:
index=path.index("..")
if index!=-1:
path=path[:index]
except:
pass
return pathjoin(abspath(path), sufix).replace('\\','/')

def getOptions():
'''get and parse options '''
usage = "usage: %prog [options] FILE1 [ FILE2 ...]"
parser=OptionParser(usage=usage)
parser.add_option("-r", "--resolution", dest="resolution", help="the destination resolution in 1024x768 format. You may use Non-digital chars to separate width and height, but do not use space as delimiter")
parser.add_option("-p", "--percent", dest="percent", help="the destination resolution in 90 format, where 90 stands for 90% percent. Please do not add the '%' sign.")
parser.add_option("-d", "--destination", dest="destination", help="the path to save the result. if omitted, the current folder will be used.")
(options, args) = parser.parse_args()
if not ( options.resolution or options.percent):
print parser.parse_args( [ '--help' ] )
exit(1)
if not args:
print "Please Specify Picture files to resize!"
print parser.parse_args( [ '--help' ] )
exit(1)
if not (options.destination):
options.destination=getPath()
return{
'files': args,
'option': options,
}
def resize(files, resolutionString="", percent=None, output="./"):
'''resize all files with given opts'''
size=[]
if resolutionString:
size=re.findall(r"\d+", resolutionString)
size=[int(i) for i in size]
if not size:
print "Seems the resolution argument is not correct."
exit(1)
elif percent:
percent=int(percent)
if not percent:
print "Seems the percent argument is not correct."
exit(1)
all=len(files)
index=0
for file in files:
try:
im=Image.open(file)
try:
filename=re.findall(r"[^/]+$", file)[0]
except:
print 'Error occured when try to get the real filename'
continue
outputfilename=pathjoin(abspath(output), "r_"+filename).replace('\\','/')
if percent and not size:
size=[int(i * percent / 100) for i in im.size ]
result=im.resize(size, Image.ANTIALIAS)
result.save(outputfilename)
index+=1
print "[%d of %d] %s has been resized." % (index, all, file)
except:
print "Error occured when resizing %s" % file

if __name__=="__main__":
args=getOptions()
files=args['files']
option=args['option']
resize(files, resolutionString=option.resolution,
percent=option.percent,
output=option.destination)