Script-fu Master needed| motion filter

[Milkman Dan]

Hi guys. I need some help.

Is there a filter or script-fu configuration that will look at a frame, and turn a pixel 255 red, or 255 green if it was detected as moving?

Thanks.

[Malcolm]

Hi Dan,

i don't have the time to (think and) write the complete script. But i can give you some hints, so you can write it yourself (and learn something :))

Look here Script to increase compressibility (http://forum.doom9.org/showthread.php?s=&threadid=35923) to see how Layer() and Mask() works

In the following lines, i use names for clips like in the post above.

- Use mask_clip=Subtract(clip.Trim(1,0),clip) to get the Difference between two Frames.
- Use Greyscale() if needed
- Use Levels() to adjust things as you need them (strength of red/green, etc.)
- Use overlay=BlankClip(last, $FF0000).ConvertToRGB32() for a Red Mask ($00FF00 for Green) (see the link below how and where to use the 'overlay' clip)
- Use the 'overlay' and 'mask_clip' as input for Mask()
- Use some filters (e.g. Convolution3D) to remove noise before Subtract(). Otherwise you'll get Motion, where there's no

bye,
Malcolm