Is it possible to do? As of know I am using the following to pass an image to the callback:
static void onMouse( int event, int x, int y, int, void* param)
{
// Mount back the parameters
Mat* ptrImage = (Mat*)param;
//What to do when left button is pressed
if( event != EVENT_LBUTTONDOWN ){
// Draw the point on the image here!
return;
}
}
namedWindow("draw mask", WINDOW_AUTOSIZE);
setMouseCallback("draw mask", onMouse, (void*)&work_image);
But I would like to add a second pointer to a vector of points to keep storing them also, just don't know how to add multiple parameters. Anyone has any idea without creating global variables?