Basic scene change detection

[esby]

If i consider a stream of frames,
what i need to do in order to perform a simple scenechange detection,
shall i work in luminance using the frame by frame difference?
or shall i use an other algo?

(The goal is to locate scenechange in a clip, for cleaning manually
the crap that may be at the scenechange...)


esby

[Belgabor]

Afaik the VCR mod of Virtualdub (iirc www.virtualdub.net) has scene change detection, perhaps you can salvage the code. VirtualDub itself has some (for the buttons), but I think that in the mod was improved.

[esby]

mmm afik, the vdub buttons just offer keyframe seek,
which i can do by vfw...

I could salvage vdub or nandub scenechange algo,
but i don't want to do it actually unless it is what i need exactly


esby

[int 21h]

Virtualdub definitely has builtin scene change detection for the buttons, maybe take a look again at the buttons... Nandub simply uses that algo, with some custom additions, by the now defunct release group called 'ViRA'.

[esby]

indeed, never noticed the two buttons,
(i knew there existed, but i never catched before this day what
they were doing :)
It might be of use for what i m doing, thanks to both of you :)

esby

[Nic]

Youll also probably find that some of Marc FDs and neuron2's filters have scene change detection (there Dup filters, must have it). if you want to work in YUV space...

-Nic