erosion_opencl

Apply erosion effect to the video.

This filter replaces the pixel by the local(3x3) minimum.

It accepts the following options:

threshold0

threshold1

threshold2

threshold3

Limit the maximum change for each plane. Range is [0, 65535] and default value is 65535. If 0, plane will remain unchanged.

coordinates

Flag which specifies the pixel to refer to. Range is [0, 255] and default value is 255, i.e. all eight pixels are used.

Flags to local 3x3 coordinates region centered on x:

1 2 3

4 x 5

6 7 8