[FFmpeg-devel] additive frame change detection algorithm

Michael Niedermayer michael at niedermayer.cc
Wed May 11 16:01:35 CEST 2016

On Tue, May 10, 2016 at 10:25:16AM -0500, Dave Hess wrote:
> I'm working on a post-process that will create thumbnails of a computer
> screen capture.  Is there a frame change detection algorithm similar to
> "scene" that will detect changes from a previously detected frame or from x
> frames prior?  The current scene algorithm doesn't detect subtle changes in
> frames when fade transitions are used in slide decks or when an instructor
> is annotating on a slide.  Ultimately, I'd like the thumbnail to be created

you need something that gives more weight to large localized changes


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The worst form of inequality is to try to make unequal things equal.
-- Aristotle
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