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 | 1 | initial version |
no, fx and fy are not constant, they depend on the zoom state of your camera.
so, whenever you change the zoom ( manually or by autofocus ), you need to recalibrate to get the current intrinsic matrix.
| | 2 | No.2 Revision |
no, fx and fy are not constant, they depend on the zoom state of your camera.
so, whenever you change the zoom ( manually or by autofocus ), you need to recalibrate to get the current intrinsic matrix.
with a bit of luck, you can toggle the autofocus from the settings panel , try:
VideoCapture cap(0);
cap.set(CAP_PROP_SETTINGS,1);