# -*- coding: utf-8 -*-
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将一张图片填充为正方形后切为9张图
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from PIL import Image
import sys
#将图片填充为正方形
def fill_image(image):
width, height = image.size
#选取长和宽中较大值作为新图片的
new_image_length = width if width > height else height
#生成新图片[白底]
new_image = Image.new(image.mode, (new_image_length, new_image_length), color=‘white‘)
#将之前的图粘贴在新图上，居中
if width > height:#原图宽大于高，则填充图片的竖直维度
#(x,y)二元组表示粘贴上图相对下图的起始位置
new_image.paste(image, (0, int((new_image_length - height) / 2)))
else:
new_image.paste(image, (int((new_image_length - width) / 2),0))
return new_image
#切图
def cut_image(image):
width, height = image.size
item_width = int(width / 3)
box_list = []
# (left, upper, right, lower)
for i in range(0,3):#两重循环，生成9张图片基于原图的位置
for j in range(0,3):
#print((i*item_width,j*item_width,(i+1)*item_width,(j+1)*item_width))
box = (j*item_width,i*item_width,(j+1)*item_width,(i+1)*item_width)
box_list.append(box)
image_list = [image.crop(box) for box in box_list]
return image_list
#保存
def save_images(image_list):
index = 1
for image in image_list:
image.save(‘./result/python‘+str(index) + ‘.png‘, ‘PNG‘)
index += 1
if __name__ == ‘__main__‘:
file_path = "python.jpeg"
image = Image.open(file_path)
image = fill_image(image)
image_list = cut_image(image)
save_images(image_list)
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原文地址：https://www.cnblogs.com/heimaguangzhou/p/11572279.html