[jitter] Inverting images with cv.jit objects

Dear all - 

I am creating an installation where the user has a light source which controls certain parameters of synthesis - i have managed to track my light object using the cv.jit objects which works brilliantly, but was wondering if there is a way to invert an image on the x axis - the user will be looking at the position of the tracked light object on a screen, but currently when you move your hand to the right, the object moves to the left, which is rather confusing for the user. Is there a jit. object than inverts the x axis?

Also, with the cv.jit library, is there a way to track individual colours (such as pink or green) or do I always need to use the jit.rbg2luma object an convert to greyscale and follow the lightest object?

Regards,