Apply Temporal Midway Video Equalization effect.

Midway Video Equalization adjusts a sequence of video frames to have the same histograms, while maintaining their dynamics as much as possible. It’s useful for e.g. matching exposures from a video frames sequence.

This filter accepts the following option:

radius

Set filtering radius. Default is 5. Allowed range is from 1 to 127.

sigma

Set filtering sigma. Default is 0.5. This controls strength of filtering. Setting this option to 0 effectively does nothing.

planes

Set which planes to process. Default is 15, which is all available planes.