touch tap detection slow if I touch the same position
Hi!
I tried to use setMouseCallback() to detect touch operation on the touch screen by using C++. It works fine to detect touch with position information. But when I tried to touch the same position, It seems slowing touch detection event very much. If I touch the different position, it responds quickly. Is there any any to avoid this situation ?
just curious, what kind of device / os would that be ?
I am using windows 10 desktop with visual studio 2017.
i am using opencv for my project not only for image processing but also for GUI with touch screen. There are cases to increase or decrease values on GUI button icon which means tap on same area on the touch screen repeatedly. To check the situation, I use mouse to click the same position repeatedly and move a slightly different position repeatedly on the button icon. When I click slightly different position but in the icon area, it works fine(no delay). But if I click the same position repeatedly, there are remarkable delay to respond.
In my honoust opinion, if you want to detect touch, you do not need OpenCV, unless you want to film someone and see where they are tapping on another screen? Your decision
I am using opencv for my project not only for image processing but also for GUI with touch screen
is simply wrong. The simple GUI elements in OpenCV are for debugging, not for building robust interfaces.