实战|OpenCV图片修复配合鼠标简单使用

#include <iostream>
#include <opencv2/opencv.hpp>

using namespace cv;
using namespace std;

Mat src;
Mat srccopy; //用于拷贝出的源图像
string showsrc = "源图";
//鼠标控制
Rect rect; //鼠标选取的矩形
bool firstleftbutton = false;
bool leftButtonDownFlag = false; //左键单击后视频暂停播放的标志位
Point rectstartPoint; //矩形框起点
Point rectstopPoint; //矩形框终点
void onMouse(int event, int x, int y, int flags, void* ustc); //鼠标回调函数

//图像修复
void oninpaint(Rect rect);

int main(int argc,char** argv)
{
  src = imread("E:/DCIM/Test3.jpg");

  //窗体
  namedWindow(showsrc);
  //设置鼠标响影事件
  setMouseCallback(showsrc, onMouse);
  //显示图像
  imshow(showsrc, src);
  
  waitKey(0);
  return 0;
}

//鼠标回调函数
void onMouse(int event, int x, int y, int flags, void * ustc)
{
  //鼠标左键按下
  if (event == CV_EVENT_LBUTTONDOWN)
  {
    leftButtonDownFlag = true; //更新按下标志位
    rectstartPoint = cv::Point(x, y); //设置矩形的开始点
    rectstopPoint = rectstartPoint; //刚按下时结束点和开始点一样
  }
  //当鼠标按下并且开始移动时
  else if (event == CV_EVENT_MOUSEMOVE && leftButtonDownFlag)
  {
    srccopy = src.clone(); //复制源图像
    rectstopPoint = cv::Point(x, y); //设置矩形的结束点
    if (rectstartPoint != rectstopPoint)
    {
      //当矩形的开始点和结束点不同后在复制的图像上绘制矩形
      cv::rectangle(srccopy, rectstartPoint, rectstopPoint,
        cv::Scalar(0, 0, 255));
    }
    imshow(showsrc, srccopy);
  }
  //当鼠标抬起时
  else if (event == CV_EVENT_LBUTTONUP)
  {
    leftButtonDownFlag = false;//按下鼠标标志位复位
    rect = Rect(rectstartPoint, rectstopPoint);//设置选中后的矩形

    oninpaint(rect);
  }
}

//图像修复
void oninpaint(Rect rect)
{
  //创建是个模版画上要修复的区域
  Mat tmp = Mat::zeros(src.size(), CV_8UC1);
  rectangle(tmp, rect, Scalar::all(255), -1);

  //进行图像修复
  Mat result;
  inpaint(src, tmp, result, 5, INPAINT_TELEA);
  imshow(showsrc, result);
}