Since*
5.1
Determines blockiness of frames without altering the input frames.
Based on Remco Muijs and Ihor Kirenko: "A no-reference blocking artifact measure for adaptive video processing." 2005 13th European signal processing conference.
The filter accepts the following options:
- period_min, period_max
-
Set minimum and maximum values for determining pixel grids (periods). Default values are [3,24].
- planes
-
Set planes to filter. Default is first only.
Examples
-
Determine blockiness for the first plane and search for periods within [8,32]:
blockdetect=period_min=8:period_max=32:planes=1