This code creates static images illustrating how perception of boundary sharpness is affected little by noise.

Two slightly different gray fields Observations: average brightness is a neutral gray step in brightness is small boundary is clear and sharp

Same fields with dominant noise: Observations: average brightness is the same step in average brightness is the same introduced noise greater than the step boundary is less clear but still sharp

This creates similar static images illustrating how introduction of a gradient sharpens perception.

This uses your first camera to acquire images which are then processed to gray-level boundaries in all three color planes.