blockdetect

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