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enabled OpenGL on MacOSX

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This commit is contained in:
Ilya Lavrenov
2014-02-13 00:17:15 +04:00
parent e55679079f
commit 879c0196d4
4 changed files with 52 additions and 46 deletions
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2
samples/cpp/Qt_sample/CMakeLists.txt
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@@ -7,6 +7,6 @@ FIND_PACKAGE( OpenCV REQUIRED )
find_package (OpenGL REQUIRED)
ADD_EXECUTABLE(OpenGL_Qt_Binding main.cpp)
ADD_EXECUTABLE(OpenGL_Qt_Binding qt_opengl.cpp)
TARGET_LINK_LIBRARIES(OpenGL_Qt_Binding ${OpenCV_LIBS} ${OPENGL_LIBRARIES} )
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cube4.avi ${CMAKE_CURRENT_BINARY_DIR}/cube4.avi COPYONLY)

65
samples/cpp/Qt_sample/main.cpp → samples/cpp/Qt_sample/qt_opengl.cpp
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@@ -33,14 +33,14 @@ static void help()
cout << "\nThis demo demonstrates the use of the Qt enhanced version of the highgui GUI interface\n"
" and dang if it doesn't throw in the use of of the POSIT 3D tracking algorithm too\n"
"It works off of the video: cube4.avi\n"
"Using OpenCV version %s\n" << CV_VERSION << "\n\n"
" 1). This demo is mainly based on work from Javier Barandiaran Martirena\n"
" See this page http://code.opencv.org/projects/opencv/wiki/Posit.\n"
" 2). This is a demo to illustrate how to use **OpenGL Callback**.\n"
" 3). You need Qt binding to compile this sample with OpenGL support enabled.\n"
" 4). The features' detection is very basic and could highly be improved \n"
" (basic thresholding tuned for the specific video) but 2).\n"
" 5) THANKS TO Google Summer of Code 2010 for supporting this work!\n" << endl;
"Using OpenCV version " << CV_VERSION << "\n\n"
" 1). This demo is mainly based on work from Javier Barandiaran Martirena\n"
" See this page http://code.opencv.org/projects/opencv/wiki/Posit.\n"
" 2). This is a demo to illustrate how to use **OpenGL Callback**.\n"
" 3). You need Qt binding to compile this sample with OpenGL support enabled.\n"
" 4). The features' detection is very basic and could highly be improved \n"
" (basic thresholding tuned for the specific video) but 2).\n"
" 5) THANKS TO Google Summer of Code 2010 for supporting this work!\n" << endl;
}
#define FOCAL_LENGTH 600
@@ -88,7 +88,6 @@ static void renderCube(float size)
glEnd();
}
static void on_opengl(void* param)
{
//Draw the object with the estimated pose
@@ -121,8 +120,6 @@ static void foundCorners(vector<CvPoint2D32f> *srcImagePoints, const Mat& source
threshold(grayImage, grayImage, 26, 255, THRESH_BINARY_INV); //25
Mat MgrayImage = grayImage;
//For debug
//MgrayImage = MgrayImage.clone();//deep copy
vector<vector<Point> > contours;
vector<Vec4i> hierarchy;
findContours(MgrayImage, contours, hierarchy, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE);
@@ -199,21 +196,15 @@ static void foundCorners(vector<CvPoint2D32f> *srcImagePoints, const Mat& source
srcImagePoints->at(i) = cvPoint2D32f(srcImagePoints_temp.at(i).x-source.cols/2,source.rows/2-srcImagePoints_temp.at(i).y);
}
}
}
static void createOpenGLMatrixFrom(float *posePOSIT,const CvMatr32f &rotationMatrix, const CvVect32f &translationVector)
{
//coordinate system returned is relative to the first 3D input point
for (int f=0; f<3; f++)
{
for (int c=0; c<3; c++)
{
posePOSIT[c*4+f] = rotationMatrix[f*3+c]; //transposed
}
}
posePOSIT[3] = 0.0;
posePOSIT[7] = 0.0;
posePOSIT[11] = 0.0;
@@ -226,19 +217,27 @@ static void createOpenGLMatrixFrom(float *posePOSIT,const CvMatr32f &rotationMat
int main(void)
{
help();
VideoCapture video("cube4.avi");
CV_Assert(video.isOpened());
string fileName = "cube4.avi";
VideoCapture video(fileName);
if (!video.isOpened())
{
cerr << "Video file " << fileName << " could not be opened" << endl;
return EXIT_FAILURE;
}
Mat source, grayImage;
video >> source;
namedWindow("original", WINDOW_AUTOSIZE | CV_WINDOW_FREERATIO);
namedWindow("POSIT", WINDOW_AUTOSIZE | CV_WINDOW_FREERATIO);
displayOverlay("POSIT", "We lost the 4 corners' detection quite often (the red circles disappear). This demo is only to illustrate how to use OpenGL callback.\n -- Press ESC to exit.", 10000);
namedWindow("POSIT", WINDOW_OPENGL | CV_WINDOW_FREERATIO);
resizeWindow("POSIT", source.cols, source.rows);
float OpenGLMatrix[]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
setOpenGlDrawCallback("POSIT",on_opengl,OpenGLMatrix);
displayOverlay("POSIT", "We lost the 4 corners' detection quite often (the red circles disappear)."
"This demo is only to illustrate how to use OpenGL callback.\n -- Press ESC to exit.", 10000);
float OpenGLMatrix[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
setOpenGlDrawCallback("POSIT", on_opengl, OpenGLMatrix);
vector<CvPoint3D32f> modelPoints;
initPOSIT(&modelPoints);
@@ -248,19 +247,20 @@ int main(void)
CvMatr32f rotation_matrix = new float[9];
CvVect32f translation_vector = new float[3];
CvTermCriteria criteria = cvTermCriteria(CV_TERMCRIT_EPS | CV_TERMCRIT_ITER, 100, 1.0e-4f);
CvTermCriteria criteria = cvTermCriteria(CV_TERMCRIT_EPS | CV_TERMCRIT_ITER, 100, 1e-4f);
vector<CvPoint2D32f> srcImagePoints(4, cvPoint2D32f(0, 0));
vector<CvPoint2D32f> srcImagePoints(4,cvPoint2D32f(0,0));
while(waitKey(33) != 27)
while (waitKey(33) != 27)
{
video >> source;
imshow("original",source);
if (source.empty())
break;
imshow("original", source);
foundCorners(&srcImagePoints,source,grayImage);
cvPOSIT( positObject, &srcImagePoints[0], FOCAL_LENGTH, criteria, rotation_matrix, translation_vector );
createOpenGLMatrixFrom(OpenGLMatrix,rotation_matrix,translation_vector);
createOpenGLMatrixFrom(OpenGLMatrix, rotation_matrix, translation_vector);
imshow("POSIT",source);
@@ -268,6 +268,7 @@ int main(void)
video.set(CV_CAP_PROP_POS_AVI_RATIO, 0);
}
setOpenGlDrawCallback("POSIT", 0, 0);
destroyAllWindows();
cvReleasePOSITObject(&positObject);