基于Python实现图片一键切割九宫格的工具

"""
 1.将一张图片填充为正方形
 2.将文字加到方形图片上
 3.讲图片切为9张图并存储
"""
import os
from tkinter import filedialog
from PIL import Image
from future.moves import tkinter
# 填充文字的库
import PIL
from PIL import ImageFont,Image,ImageDraw

def open_img():
    """
    打开图片
    :return:
    """
    root = tkinter.Tk()  # 创建一个Tkinter.Tk()实例
    root.withdraw()  # 将Tkinter.Tk()实例隐藏
    default_dir = r"文件路径"
    file_path = filedialog.askopenfilename(title=u'选择文件', initialdir=(os.path.expanduser(default_dir)))
    if len(file_path) != 0:
        image = Image.open(file_path)
        fill_image(image)
    else:
        SystemExit()


def fill_image(img):
    """
    将图片填充为正方形
    :param img: 图片
    :return:
    """
    width, height = img.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(img.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(img, (0, int((new_image_length - height) / 2)))
    else:
        new_image.paste(img, (int((new_image_length - width) / 2), 0))

    # 图片上写上文字
    # 设置字体，如果没有，也可以不设置
    font = ImageFont.truetype(r"C:\windows\Fonts\STHUPO.TTF", 50)
    datas='V:xlzcm88或xlzcm66'
    bytedatas=datas.encode('UTF-8')
    draw = ImageDraw.Draw(new_image)
    draw.text((0,new_image.size[1]/2), u'V:xlzcm88或xlzcm66', font=font)

    cut_image(new_image)


def cut_image(img):
    """
    切图
    :param img: 填充成方形后的图片
    :return:
    """
    width, height = img.size
    item_width = int(width / 3)
    box_list = []
    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):
            box = (j * item_width, i * item_width, (j + 1) * item_width, (i + 1) * item_width)
            box_list.append(box)

    img_list = [img.crop(box) for box in box_list]
    save_images(img_list)


def save_images(img_list):
    """
    保存切割完成的图片
    :param img_list: 切割后的图片列表
    :return:
    """
    index = 1
    files_path = 'Pic'
    # 若文件夹不存在，则创建
    if not os.path.exists(files_path):
        os.makedirs(files_path)

    for img in img_list:
        img.save('./Pic/' + str(index) + '.png', 'PNG')
        index += 1
    print('完成')


if __name__ == '__main__':
    open_img()

# -*- coding: utf-8 -*-
 
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
        new_image.paste(image, (0, int((new_image_length - height) / 2)))  # (x,y)二元组表示粘贴上图相对下图的起始位置
    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):
        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('./output/' + str(index) + '.jpg')
        index += 1
 
 
if __name__ == '__main__':
    file_path = "./output/girl.jpg"
    image = Image.open(file_path)
    image.show()
    image = fill_image(image)
    image_list = cut_image(image)
    save_images(image_list)