[FFmpeg-user] Scene detection

lovelove googol at wolke7.net
Wed Sep 7 11:12:36 CEST 2011

lovelove wrote:
> Stefano Sabatini wrote:
>> an underkill solution may be as simple as tweaking the
>> select filter and adopt a simple pixel-per-pixel average difference as
>> metric.
> I think this would work only with motionless scenes, but could fail on
> e.g. a continuous shot of a crowded street. Or spinning elements (
> http://www.wheeloffortuneinfo.com/WheelAnimated-White.gif ). 

An alternative to the pixel-per-pixel average difference would be to detect
sudden histogram changes (if that's any easier to implement). This shouldn't
be fooled by the 2 examples I gave above, I think.

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