py切割图片微信高逼格朋友圈

读取图片->填充为正方形->将图像切位9张->保存图片

from PIL import Image

# 先将 input image 填充为正方形
def fill_image(image):
    # 获取图像的宽和高
    width, height = image.size
    # 获取长和宽中较大值作为新图片
    new_image_length = width if width > height else height
    # 生成新图片
    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,是个坐标点。
        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

def cut_image(image):
    width, height = image.size
    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)
    # crop : 返回图像某个给定区域。box 是一个 4 元素元组，定义了 left, upper, right, lower 像素坐标
    image_list = [image.crop(box) for box in box_list]
    return image_list
# 保存
def save_image(image_list):
    index = 1
    for image in image_list:
        image.save('./image/' + str(index) + '.png', 'PNG')
        index += 1

if __name__ == '__main__':
    file_path = './m.jpg'
    image = Image.open(file_path)
    image = fill_image(image)
    image_list = cut_image(image)
    save_image(image_list)