mirror of https://github.com/opencv/opencv.git
Merge pull request #2089 from ilya-lavrenov:tapi_examples
Roman Donchenko
11 years ago
committed by
OpenCV Buildbot
commit
6d4c80083e
8 changed files with 290 additions and 6 deletions
@ -0,0 +1,52 @@ |
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SET(OPENCV_TAPI_SAMPLES_REQUIRED_DEPS opencv_core opencv_imgproc opencv_video opencv_highgui) |
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ocv_check_dependencies(${OPENCV_TAPI_SAMPLES_REQUIRED_DEPS}) |
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if(BUILD_EXAMPLES AND OCV_DEPENDENCIES_FOUND) |
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set(project "tapi") |
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string(TOUPPER "${project}" project_upper) |
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project("${project}_samples") |
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ocv_include_modules(${OPENCV_TAPI_SAMPLES_REQUIRED_DEPS}) |
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# --------------------------------------------- |
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# Define executable targets |
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# --------------------------------------------- |
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MACRO(OPENCV_DEFINE_TAPI_EXAMPLE name srcs) |
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set(the_target "example_${project}_${name}") |
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add_executable(${the_target} ${srcs}) |
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target_link_libraries(${the_target} ${OPENCV_LINKER_LIBS} ${OPENCV_TAPI_SAMPLES_REQUIRED_DEPS}) |
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set_target_properties(${the_target} PROPERTIES |
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OUTPUT_NAME "${project}-example-${name}" |
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PROJECT_LABEL "(EXAMPLE_${project_upper}) ${name}") |
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if(ENABLE_SOLUTION_FOLDERS) |
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set_target_properties(${the_target} PROPERTIES FOLDER "samples//${project}") |
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endif() |
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if(WIN32) |
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if(MSVC AND NOT BUILD_SHARED_LIBS) |
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set_target_properties(${the_target} PROPERTIES LINK_FLAGS "/NODEFAULTLIB:atlthunk.lib /NODEFAULTLIB:atlsd.lib /DEBUG") |
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endif() |
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install(TARGETS ${the_target} RUNTIME DESTINATION "${OPENCV_SAMPLES_BIN_INSTALL_PATH}/${project}" COMPONENT main) |
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endif() |
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ENDMACRO() |
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file(GLOB all_samples RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.cpp) |
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foreach(sample_filename ${all_samples}) |
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get_filename_component(sample ${sample_filename} NAME_WE) |
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file(GLOB sample_srcs RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} ${sample}.*) |
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OPENCV_DEFINE_TAPI_EXAMPLE(${sample} ${sample_srcs}) |
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endforeach() |
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endif() |
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if(INSTALL_C_EXAMPLES AND NOT WIN32) |
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file(GLOB install_list *.c *.cpp *.jpg *.png *.data makefile.* build_all.sh *.dsp *.cmd ) |
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install(FILES ${install_list} |
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DESTINATION share/OpenCV/samples/${project} |
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PERMISSIONS OWNER_READ GROUP_READ WORLD_READ) |
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endif() |
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@ -0,0 +1,226 @@ |
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#include "opencv2/core/utility.hpp" |
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#include "opencv2/core/ocl.hpp" |
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#include "opencv2/video/tracking.hpp" |
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#include "opencv2/imgproc/imgproc.hpp" |
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#include "opencv2/highgui/highgui.hpp" |
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#include <iostream> |
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#include <cctype> |
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static cv::UMat image; |
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static bool backprojMode = false; |
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static bool selectObject = false; |
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static int trackObject = 0; |
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static bool showHist = true; |
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static cv::Rect selection; |
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static int vmin = 10, vmax = 256, smin = 30; |
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static void onMouse(int event, int x, int y, int, void*) |
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{ |
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static cv::Point origin; |
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if (selectObject) |
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{ |
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selection.x = std::min(x, origin.x); |
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selection.y = std::min(y, origin.y); |
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selection.width = std::abs(x - origin.x); |
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selection.height = std::abs(y - origin.y); |
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selection &= cv::Rect(0, 0, image.cols, image.rows); |
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} |
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switch (event) |
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{ |
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case cv::EVENT_LBUTTONDOWN: |
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origin = cv::Point(x, y); |
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selection = cv::Rect(x, y, 0, 0); |
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selectObject = true; |
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break; |
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case cv::EVENT_LBUTTONUP: |
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selectObject = false; |
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if (selection.width > 0 && selection.height > 0) |
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trackObject = -1; |
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break; |
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default: |
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break; |
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} |
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} |
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static void help() |
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{ |
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std::cout << "\nThis is a demo that shows mean-shift based tracking using Transparent API\n" |
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"You select a color objects such as your face and it tracks it.\n" |
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"This reads from video camera (0 by default, or the camera number the user enters\n" |
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"Usage: \n" |
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" ./camshiftdemo [camera number]\n"; |
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std::cout << "\n\nHot keys: \n" |
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"\tESC - quit the program\n" |
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"\ts - stop the tracking\n" |
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"\tb - switch to/from backprojection view\n" |
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"\th - show/hide object histogram\n" |
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"\tp - pause video\n" |
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"\tc - use OpenCL or not\n" |
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"To initialize tracking, select the object with mouse\n"; |
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} |
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int main(int argc, const char ** argv) |
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{ |
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help(); |
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cv::VideoCapture cap; |
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cv::Rect trackWindow; |
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int hsize = 16; |
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float hranges[2] = { 0, 180 }; |
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const char * const keys = { "{@camera_number| 0 | camera number}" }; |
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cv::CommandLineParser parser(argc, argv, keys); |
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int camNum = parser.get<int>(0); |
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cap.open(camNum); |
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if (!cap.isOpened()) |
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{ |
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help(); |
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std::cout << "***Could not initialize capturing...***\n"; |
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std::cout << "Current parameter's value: \n"; |
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parser.printMessage(); |
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return EXIT_FAILURE; |
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} |
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cv::namedWindow("Histogram", cv::WINDOW_NORMAL); |
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cv::namedWindow("CamShift Demo", cv::WINDOW_NORMAL); |
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cv::setMouseCallback("CamShift Demo", onMouse); |
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cv::createTrackbar("Vmin", "CamShift Demo", &vmin, 256); |
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cv::createTrackbar("Vmax", "CamShift Demo", &vmax, 256); |
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cv::createTrackbar("Smin", "CamShift Demo", &smin, 256); |
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cv::Mat frame, histimg(200, 320, CV_8UC3, cv::Scalar::all(0)); |
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cv::UMat hsv, hist, hue, mask, backproj; |
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bool paused = false; |
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for ( ; ; ) |
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{ |
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if (!paused) |
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{ |
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cap >> frame; |
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if (frame.empty()) |
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break; |
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} |
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frame.copyTo(image); |
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if (!paused) |
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{ |
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cv::cvtColor(image, hsv, cv::COLOR_BGR2HSV); |
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if (trackObject) |
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{ |
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int _vmin = vmin, _vmax = vmax; |
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cv::inRange(hsv, cv::Scalar(0, smin, std::min(_vmin, _vmax)), |
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cv::Scalar(180, 256, std::max(_vmin, _vmax)), mask); |
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int fromTo[2] = { 0,0 }; |
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hue.create(hsv.size(), hsv.depth()); |
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cv::mixChannels(std::vector<cv::UMat>(1, hsv), std::vector<cv::UMat>(1, hue), fromTo, 1); |
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if (trackObject < 0) |
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{ |
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cv::UMat roi(hue, selection), maskroi(mask, selection); |
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cv::calcHist(std::vector<cv::Mat>(1, roi.getMat(cv::ACCESS_READ)), std::vector<int>(1, 0), |
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maskroi, hist, std::vector<int>(1, hsize), std::vector<float>(hranges, hranges + 2)); |
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cv::normalize(hist, hist, 0, 255, cv::NORM_MINMAX); |
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trackWindow = selection; |
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trackObject = 1; |
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histimg = cv::Scalar::all(0); |
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int binW = histimg.cols / hsize; |
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cv::Mat buf (1, hsize, CV_8UC3); |
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for (int i = 0; i < hsize; i++) |
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buf.at<cv::Vec3b>(i) = cv::Vec3b(cv::saturate_cast<uchar>(i*180./hsize), 255, 255); |
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cv::cvtColor(buf, buf, cv::COLOR_HSV2BGR); |
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{ |
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cv::Mat _hist = hist.getMat(cv::ACCESS_READ); |
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for (int i = 0; i < hsize; i++) |
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{ |
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int val = cv::saturate_cast<int>(_hist.at<float>(i)*histimg.rows/255); |
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cv::rectangle(histimg, cv::Point(i*binW, histimg.rows), |
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cv::Point((i+1)*binW, histimg.rows - val), |
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cv::Scalar(buf.at<cv::Vec3b>(i)), -1, 8); |
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} |
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} |
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} |
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cv::calcBackProject(std::vector<cv::UMat>(1, hue), std::vector<int>(1, 0), hist, backproj, |
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std::vector<float>(hranges, hranges + 2), 1.0); |
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cv::bitwise_and(backproj, mask, backproj); |
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cv::RotatedRect trackBox = cv::CamShift(backproj, trackWindow, |
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cv::TermCriteria(cv::TermCriteria::EPS | cv::TermCriteria::COUNT, 10, 1)); |
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if (trackWindow.area() <= 1) |
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{ |
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int cols = backproj.cols, rows = backproj.rows, r = (std::min(cols, rows) + 5)/6; |
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trackWindow = cv::Rect(trackWindow.x - r, trackWindow.y - r, |
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trackWindow.x + r, trackWindow.y + r) & |
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cv::Rect(0, 0, cols, rows); |
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} |
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if (backprojMode) |
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cv::cvtColor(backproj, image, cv::COLOR_GRAY2BGR); |
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{ |
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cv::Mat _image = image.getMat(cv::ACCESS_RW); |
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cv::ellipse(_image, trackBox, cv::Scalar(0, 0, 255), 3, cv::LINE_AA); |
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} |
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} |
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} |
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else if (trackObject < 0) |
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paused = false; |
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if (selectObject && selection.width > 0 && selection.height > 0) |
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{ |
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cv::UMat roi(image, selection); |
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cv::bitwise_not(roi, roi); |
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} |
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cv::imshow("CamShift Demo", image); |
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if (showHist) |
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cv::imshow("Histogram", histimg); |
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char c = (char)cv::waitKey(10); |
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if (c == 27) |
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break; |
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switch(c) |
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{ |
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case 'b': |
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backprojMode = !backprojMode; |
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break; |
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case 't': |
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trackObject = 0; |
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histimg = cv::Scalar::all(0); |
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break; |
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case 'h': |
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showHist = !showHist; |
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if (!showHist) |
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cv::destroyWindow("Histogram"); |
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else |
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cv::namedWindow("Histogram", cv::WINDOW_AUTOSIZE); |
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break; |
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case 'p': |
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paused = !paused; |
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break; |
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case 'c': |
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cv::ocl::setUseOpenCL(!cv::ocl::useOpenCL()); |
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default: |
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break; |
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} |
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} |
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return EXIT_SUCCESS; |
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} |
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