Re: [FFmpeg-devel] additive frame change detection algorithm

2016-05-11 Thread Michael Niedermayer
On Wed, May 11, 2016 at 10:51:32AM -0500, Dave Hess wrote: > >you need something that gives more weight to large localized changes > >likely > > Yes, good point. How about additional parameters to the function that > specify a grid pattern and if any individual section in that grid meets the > th

Re: [FFmpeg-devel] additive frame change detection algorithm

2016-05-11 Thread Dave Hess
>you need something that gives more weight to large localized changes >likely Yes, good point. How about additional parameters to the function that specify a grid pattern and if any individual section in that grid meets the threshold, then it returns true? It could even have another parameter to

Re: [FFmpeg-devel] additive frame change detection algorithm

2016-05-11 Thread Michael Niedermayer
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