Python切图九宫格的实现方法

本文介绍了Python切图九宫格的实现方法,分享给大家,具体如下

# -*- coding: utf-8 -*-

'''

将一张图片填充为正方形后切为9张图

'''

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('./python'+str(index) + '.png', 'PNG')

index += 1

if __name__ == '__main__':

file_path = "python.jpeg"

image = Image.open(file_path)

#image.show()

image = fill_image(image)

image_list = cut_image(image)

save_images(image_list)

  

  

  

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