114 lines
2.9 KiB
C++
114 lines
2.9 KiB
C++
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#include <iostream>
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#include "opencv2/core.hpp"
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#include "opencv2/core/ocl.hpp"
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#include "opencv2/core/utility.hpp"
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#include "opencv2/imgproc.hpp"
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#include "opencv2/imgcodecs.hpp"
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#include "opencv2/videoio.hpp"
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#include "opencv2/highgui.hpp"
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using namespace cv;
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using namespace std;
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Ptr<CLAHE> pFilter;
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int tilesize;
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int cliplimit;
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static void TSize_Callback(int pos, void* /*data*/)
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{
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if(pos==0)
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pFilter->setTilesGridSize(Size(1,1));
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else
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pFilter->setTilesGridSize(Size(tilesize,tilesize));
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}
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static void Clip_Callback(int, void* /*data*/)
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{
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pFilter->setClipLimit(cliplimit);
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}
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int main(int argc, char** argv)
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{
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const char* keys =
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"{ i input | | specify input image }"
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"{ c camera | 0 | specify camera id }"
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"{ o output | clahe_output.jpg | specify output save path}"
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"{ h help | | print help message }";
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cv::CommandLineParser cmd(argc, argv, keys);
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if (cmd.has("help"))
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{
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cout << "Usage : clahe [options]" << endl;
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cout << "Available options:" << endl;
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cmd.printMessage();
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return EXIT_SUCCESS;
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}
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string infile = cmd.get<string>("i"), outfile = cmd.get<string>("o");
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int camid = cmd.get<int>("c");
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VideoCapture capture;
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namedWindow("CLAHE");
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createTrackbar("Tile Size", "CLAHE", &tilesize, 32, (TrackbarCallback)TSize_Callback);
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createTrackbar("Clip Limit", "CLAHE", &cliplimit, 20, (TrackbarCallback)Clip_Callback);
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UMat frame, outframe;
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int cur_clip;
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Size cur_tilesize;
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pFilter = createCLAHE();
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cur_clip = (int)pFilter->getClipLimit();
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cur_tilesize = pFilter->getTilesGridSize();
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setTrackbarPos("Tile Size", "CLAHE", cur_tilesize.width);
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setTrackbarPos("Clip Limit", "CLAHE", cur_clip);
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if(!infile.empty())
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{
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infile = samples::findFile(infile);
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imread(infile).copyTo(frame);
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if(frame.empty())
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{
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cout << "error read image: " << infile << endl;
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return EXIT_FAILURE;
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}
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}
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else
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capture.open(camid);
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cout << "\nControls:\n"
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<< "\to - save output image\n"
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<< "\tm - switch OpenCL <-> CPU mode"
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<< "\tESC - exit\n";
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for (;;)
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{
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if(capture.isOpened())
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capture.read(frame);
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else
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imread(infile).copyTo(frame);
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if(frame.empty())
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{
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waitKey();
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break;
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}
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cvtColor(frame, frame, COLOR_BGR2GRAY);
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pFilter->apply(frame, outframe);
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imshow("CLAHE", outframe);
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char key = (char)waitKey(3);
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if(key == 'o')
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imwrite(outfile, outframe);
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else if(key == 27)
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break;
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else if(key == 'm')
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{
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ocl::setUseOpenCL(!cv::ocl::useOpenCL());
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cout << "Switched to " << (ocl::useOpenCL() ? "OpenCL enabled" : "CPU") << " mode\n";
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}
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}
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return EXIT_SUCCESS;
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}
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