Detection angles

[choukrus]

Hello, Thanks for your code , I just wanted to ask you about the angles of detection, at about 45° it doesn't detect the paper, do you know a solution to correct this ? Thanks

[nileshdhola]

@choukri6666 used black background for image capture , so automatically edge detection . i think its working proper.

[kumar5572]

Without black background how can we capture the edges @nileshdhola