Python使用PILnumpy实现拼接图片

python纵向合并任意多个图片，files是要拼接的文件list

# -*- coding:utf-8 -*-
def mergeReport(files):
 from PIL import Image
 import numpy as np
 baseimg=Image.open(files[0])
 sz = baseimg.size
 basemat=np.atleast_2d(baseimg)
 for file in files[1:]:
 im=Image.open(file)
 #resize to same width
 sz2 = im.size
 if sz2!=sz:
 im=im.resize((sz[0],round(sz2[0] / sz[0] * sz2[1])),Image.ANTIALIAS)
 mat=np.atleast_2d(im)
 basemat=np.append(basemat,mat,axis=0)
 report_img=Image.fromarray(basemat)
 report_img.save('merge.png')