opencv-laplace算子

#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/highgui/highgui.hpp"
#include <stdlib.h>
#include <stdio.h>

using namespace cv;

int main( int argc, char** argv )
{

  Mat src, src_gray, dst;
  int kernel_size = 3;
  int scale = 1;
  int delta = 0;
  int ddepth = CV_16S;
  char* window_name = "Laplace Demo";

  int c;

  //加载图像
  src = imread( argv[1] );

  if( !src.data )
    { return -1; }

  //高斯滤波去除噪声
  GaussianBlur( src, src, Size(3,3), 0, 0, BORDER_DEFAULT );

  //变换为灰度图
  cvtColor( src, src_gray, CV_RGB2GRAY );

  //创建窗口
  namedWindow( window_name, CV_WINDOW_AUTOSIZE );

  //应用拉普拉斯函数
  Mat abs_dst;

  Laplacian( src_gray, dst, ddepth, kernel_size, scale, delta, BORDER_DEFAULT );
  convertScaleAbs( dst, abs_dst );

  //输出结果显示
  imshow( window_name, abs_dst );

  waitKey(0);

  return 0;
}