Deflate/Inflate

std.Deflate(clip clip[, int[] planes=[0, 1, 2], float threshold])

Replaces each pixel with the average of the eight pixels in its 3x3 neighbourhood, but only if that average is less than the center pixel.

clip
Clip to process. It must have integer sample type, and bit depth between 8 and 16. If there are any frames with float samples or bit depth greater than 16, an error will be returned.
planes
Specifies which planes will be processed. Any unprocessed planes will be simply copied.
threshold
Allows to limit how much pixels are changed. Output pixels will not become less than input - threshold. The default is no limit.
std.Inflate(clip clip[, int[] planes=[0, 1, 2], int threshold=65535])

Replaces each pixel with the average of the eight pixels in its 3x3 neighbourhood, but only if that average is greater than the center pixel.

clip
Clip to process. It must have integer sample type, and bit depth between 8 and 16. If there are any frames with float samples or bit depth greater than 16, an error will be returned.
planes
Specifies which planes will be processed. Any unprocessed planes will be simply copied.
threshold
Allows to limit how much pixels are changed. Output pixels will not become greater than input + threshold. The default is no limit.