# pengyouquanPicture.py
# 朋友圈九宫格图片制作
 
from PIL import Image
import sys
 
# 先将input image 填充为正方形
def fill_image(image):
 width, height = image.size
 #选取原图片长、宽中较大值作为新图片的九宫格半径
 new_image_length = width if width > height else height
 #生产新图片【白底】
 new_image = Image.new(image.mode,(new_image_length, new_image_length), color='white')
 #将原图粘贴在新图上，位置为居中
 if width > height:
 new_image.paste(image,(0, int((new_image_length-heigth) / 2)))
 else:
 new_image.paste(image,(int((new_image_length-width) / 2), 0))
 return new_image
 
# 将图片切割成九宫格
def cut_image(image):
 width, height = image.size
 #一行放3张图
 item_width = int(width / 3)
 box_list = []
 for i in range(0,3):
 for j in range(0,3):
 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
#保存图片
def save_images(image_list):
 index = 1
 for image in image_list:
 image.save(str(index) + '.png', 'PNG')
 index += 1
 
if __name__ == '__main__':
 file_path = "1.jpg"
 image = Image.open(file_path)
 #image.show()
 image = fill_image(image)
 image_list = cut_image(image)
 save_images(image_list)