import tkinter as tk
from PIL import Image,ImageTk 
import sys
import tkinter.filedialog

#先將圖片填充為正方形
def fill_image(image): 
 width, height = image.size 
 #比較圖片的寬和高，選取值較大的作為新圖的寬 
 newImage_width = width if width > height else height 
 #生成正方形圖，空白處用白色填充
 newImage = Image.new(image.mode, (newImage_width, newImage_width), color='white')  
 #如果原圖寬大于高，則填充圖片的豎直維度
 if width > height: 
    newImage.paste(image, (0, int((newImage_width - height) / 2))) 
 else: 
    newImage.paste(image, (int((newImage_width - width) / 2),0)) 
 return newImage 
# 切圖（切成9張圖）
def cut_image(image):
 width, height = image.size
 colWidth = int(width / 3)   #一行3張
 image_grid = []
 for i in range(0,3):
   for j in range(0,3):
      row = (j*colWidth,i*colWidth,(j+1)*colWidth,(i+1)*colWidth)
      image_grid.append(row)
 image_list = [image.crop(row) for row in image_grid]
 return image_list

#include "stdafx.h"
#include<opencv2/opencv.hpp>
using namespace std;
using namespace cv;

int main()
{

	Mat src = imread("逃逸的卡路里.png");
	if (src.empty())
	{
		cout << "No Image!" << endl;
		system("pause");
		return -1;
	}

	//原圖寬高
	int width = src.cols;
	int height = src.rows;

	int num = 3;//小方塊數(shù)量(可實(shí)現(xiàn)任意等份分割)

				//制作九宮格每個(gè)小方塊寬高
	int step_x = width / num;
	int step_y = height / num;

	//重新resize圖片尺寸
	resize(src, src, Size(step_x * num, step_y * num), 1, 1, INTER_LINEAR);

	int space = 5; //空白間隔(實(shí)現(xiàn)九宮格效果)

	Mat canvas = Mat(Size(src.cols + space * (num - 1), src.rows + space * (num - 1)), CV_8UC3, Scalar(255, 255, 255)); //畫布，用來制作九宮格圖片

	int icount = 0;																													//就圖片分成9個(gè)小塊，將每一小塊摳圖至畫布
	for (int i = 0; i < num; i++)
	{
		for (int j = 0; j < num; j++)
		{
			//小方塊相對(duì)于原圖左上角起點(diǎn)
			int x = j * step_x;
			int y = i * step_y;
			//將小方塊摳圖至畫布。其中，每扣一小塊需跳過space空白
			src(Rect(x, y, step_x, step_y)).copyTo(canvas(Rect(x + space * j, y + space * i, step_x, step_y)));
			char cpicpath[6];
			sprintf(cpicpath, "%d.jpg", icount);;
			imwrite(cpicpath, src(Rect(x, y, step_x, step_y)));	// 保存切割的圖片
			icount++;
		}
	}

	imshow("canvas", canvas);
	imshow("test", src);
	waitKey(0);
	system("pause");
	return 0;
}