python实现图片拼接

# -*- coding:utf-8 -*-
# 图片拼接
import PIL.Image as Image
import os, sys
mw = 256 # 图片大小
toImage = Image.new('RGB', (25171, 11802))#构造图片的宽和高，如果图片不能填充完全会
#出现黑色区域
for y in range(47):#0-46
    for x in range(99):#0-98
        fname = "0_f_0_%d_%d.jpg" %(y,x)
        fromImage = Image.open(fname)
        toImage.paste(fromImage, (x * mw, y * mw))
toImage.save('E:\MGCache\image2.jpg')