Python之图片格式转换

import os
import shutil
from PIL import Image

def getAllFiles(dirName, houzhui=' '):
results = []

for file in os.listdir(dirName):
file_path = os.path.join(dirName, file)
if houzhui == ' ':
if os.path.isfile(file_path):
results.append([file_path, os.path.splitext(file)[0]])
else:
if os.path.isfile(file_path) and os.path.splitext(file_path)[1] == houzhui:
results.append([file_path,os.path.splitext(file)[0]])
return results

def checkFile(fileName):
if os.path.isfile(fileName):
return True
else:
print fileName, 'is not found!'
exit()

def checkDir(fileName, creat=False):
if os.path.isdir(fileName):
if creat:
shutil.rmtree(fileName)
os.mkdir(fileName)
else:
if creat:
os.mkdir(fileName)
else:
print fileName, 'is not found!'
exit()

if __name__ == '__main__':
files = getAllFiles('./images/','.jpg')
for file in files:
fileName = file[0]
fileShortName = file[1]
saveFileName = './images/'+fileShortName+'.eps'
Image.open(fileName).save(saveFileName)