批量修改图形文件的对比度和锐度,python 2.7

import os
import Image
import ImageEnhance
import string
import sys

   
# process single file with factor , factor should be 2.0
def procfile(filepath, destdir, factor):
    filedir, filename = os.path.split(filepath)
    if os.path.exists(os.path.join(destdir,filename)) == True: return
    im = Image.open(filepath)
    imContrast = ImageEnhance.Contrast(im).enhance(factor)
    imSharpness = ImageEnhance.Sharpness(imContrast).enhance(factor)         
    if os.path.exists(destdir) != True :
        os.makedirs(destdir)       

    imSharpness.save(os.path.join(destdir,filename))
    
def procfiles(filedir, targetdir, factor):
    print 'processing:' , filedir
    listdir = os.listdir(filedir)
    for pathname in listdir:
        print 'process file:', pathname
        entrypath = os.path.join(filedir, pathname)
        entrytarget = os.path.join(targetdir, pathname)
        if os.path.isdir(entrypath):
            procfiles(entrypath, entrytarget, factor)
        else:
            print pathname[-4:].upper()
            if pathname[-4:].upper() == '.JPG':
                print 'process:', pathname
                procfile(entrypath, targetdir, factor)                

procfiles(sys.argv[1], 'proc', 2.0)

写好保存成文件xxx.py,然后把要处理的文件夹拖放到xxx.py文件即可

目前还有碰到坏图片会停止过程的问题，有空再改吧，够用了