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)