120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
/*
|
|
* By downloading, copying, installing or using the software you agree to this license.
|
|
* If you do not agree to this license, do not download, install,
|
|
* copy or use the software.
|
|
*
|
|
*
|
|
* License Agreement
|
|
* For Open Source Computer Vision Library
|
|
* (3 - clause BSD License)
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met :
|
|
*
|
|
* *Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and / or other materials provided with the distribution.
|
|
*
|
|
* * Neither the names of the copyright holders nor the names of the contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* This software is provided by the copyright holders and contributors "as is" and
|
|
* any express or implied warranties, including, but not limited to, the implied
|
|
* warranties of merchantability and fitness for a particular purpose are disclaimed.
|
|
* In no event shall copyright holders or contributors be liable for any direct,
|
|
* indirect, incidental, special, exemplary, or consequential damages
|
|
* (including, but not limited to, procurement of substitute goods or services;
|
|
* loss of use, data, or profits; or business interruption) however caused
|
|
* and on any theory of liability, whether in contract, strict liability,
|
|
* or tort(including negligence or otherwise) arising in any way out of
|
|
* the use of this software, even if advised of the possibility of such damage.
|
|
*/
|
|
#include <opencv2/core.hpp>
|
|
#include <opencv2/core/utility.hpp>
|
|
#include <opencv2/highgui.hpp>
|
|
#include <opencv2/ximgproc.hpp>
|
|
#include "opencv2/ximgproc/deriche_filter.hpp"
|
|
|
|
using namespace cv;
|
|
using namespace cv::ximgproc;
|
|
|
|
#include <iostream>
|
|
using namespace std;
|
|
|
|
int alDerive=100;
|
|
int alMean=100;
|
|
Ptr<Mat> img;
|
|
const string & winName = "Gradient Modulus";
|
|
|
|
static void DisplayImage(Mat x,string s)
|
|
{
|
|
vector<Mat> sx;
|
|
split(x, sx);
|
|
vector<double> minVal(3), maxVal(3);
|
|
for (size_t i = 0; i < sx.size(); i++)
|
|
{
|
|
minMaxLoc(sx[i], &minVal[i], &maxVal[i]);
|
|
}
|
|
maxVal[0] = *max_element(maxVal.begin(), maxVal.end());
|
|
minVal[0] = *min_element(minVal.begin(), minVal.end());
|
|
Mat uc;
|
|
x.convertTo(uc, CV_8U,255/(maxVal[0]-minVal[0]),-255*minVal[0]/(maxVal[0]-minVal[0]));
|
|
imshow(s, uc);
|
|
}
|
|
|
|
|
|
/**
|
|
* @function DericheFilter
|
|
* @brief Trackbar callback
|
|
*/
|
|
static void DericheFilter(int, void*)
|
|
{
|
|
Mat dst;
|
|
double d=alDerive/100.0,m=alMean/100.0;
|
|
Mat rx,ry;
|
|
GradientDericheX(*img.get(),rx,d,m);
|
|
GradientDericheY(*img.get(),ry,d,m);
|
|
DisplayImage(rx, "Gx");
|
|
DisplayImage(ry, "Gy");
|
|
add(rx.mul(rx),ry.mul(ry),dst);
|
|
sqrt(dst,dst);
|
|
DisplayImage(dst, winName );
|
|
}
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
Mat *m=new Mat;
|
|
cv::CommandLineParser parser(argc, argv, "{help h | | show help message}{@input | | input image}");
|
|
if (parser.has("help"))
|
|
{
|
|
parser.printMessage();
|
|
return -1;
|
|
}
|
|
string input_image = parser.get<string>("@input");
|
|
if (input_image.empty())
|
|
{
|
|
parser.printMessage();
|
|
parser.printErrors();
|
|
return -2;
|
|
}
|
|
if (argc==2)
|
|
*m = imread(input_image);
|
|
if (m->empty())
|
|
{
|
|
cout << "File not found or empty image\n";
|
|
return -3;
|
|
}
|
|
imshow("Original", *m);
|
|
img =Ptr<Mat>(m);
|
|
namedWindow( winName, WINDOW_AUTOSIZE );
|
|
/// Create a Trackbar for user to enter threshold
|
|
createTrackbar( "Derive:",winName, &alDerive, 400, DericheFilter );
|
|
createTrackbar( "Mean:", winName, &alMean, 400, DericheFilter );
|
|
DericheFilter(0,NULL);
|
|
waitKey();
|
|
return 0;
|
|
} |