Python切图九宫格
1 # -*- coding: utf-8 -*- 2 ''' 3 将一张图片填充为正方形后切为9张图 4 ''' 5 from PIL import Image 6 import sys 7 #将图片填充为正方形 8 def fill_image(image): 9 width, height = image.size 10 #选取长和宽中较大值作为新图片的 11 new_image_length = width if width > height else height 12 #生成新图片[白底] 13 new_image = Image.new(image.mode, (new_image_length, new_image_length), color='white') 14 #将之前的图粘贴在新图上，居中 15 if width > height:#原图宽大于高，则填充图片的竖直维度 16 #(x,y)二元组表示粘贴上图相对下图的起始位置 17 new_image.paste(image, (0, int((new_image_length - height) / 2))) 18 else: 19 new_image.paste(image, (int((new_image_length - width) / 2),0)) 20 return new_image 21 #切图 22 def cut_image(image): 23 width, height = image.size 24 item_width = int(width / 3) 25 box_list = [] 26 # (left, upper, right, lower) 27 for i in range(0,3):#两重循环，生成9张图片基于原图的位置 28 for j in range(0,3): 29 #print((i*item_width,j*item_width,(i+1)*item_width,(j+1)*item_width)) 30 box = (j*item_width,i*item_width,(j+1)*item_width,(i+1)*item_width) 31 box_list.append(box) 32 33 image_list = [image.crop(box) for box in box_list] 34 return image_list 35 #保存 36 def save_images(image_list): 37 index = 1 38 for image in image_list: 39 image.save('./python'+str(index) + '.png', 'PNG') 40 index += 1 41 42 if __name__ == '__main__': 43 file_path = "python.jpeg" 44 image = Image.open(file_path) 45 #image.show() 46 image = fill_image(image) 47 image_list = cut_image(image) 48 save_images(image_list)
