[PD] Gem: resizing a pix smaller
IOhannes m zmoelnig
zmoelnig at iem.at
Thu Apr 14 19:04:27 CEST 2005
Martin Dupras wrote:
> I need to take the output of pix_video and reduce the resolution
> considerably, to something like 16 x 12. Can anyone suggest a reasonable
> way to do that?
this has been on my todo-list for ages ;-(
> While on the subject, does anyone have good pointers to doing something
> in the general ballpark of track-them-colors (Director) or Cyclops (Max)?
i have no idea what they do, but from the director-name, i guess it has
something to do with color.
[pix_blob] (0.90), [pix_multiblob] (CVS) do blob-tracking based on the
color-planes (well, this is true for [pix_blob]; [pix_multiblob] only
considers the luminance)
so you'll have to transform the color-to-track-information to be
directly accessible via linear combination ([pix_blob]) of the
color-planes (or via the luminance-plane with [pix_multiblob])
i use [pix_rgb2hsv] for this, but this surely eats a considerable amount
of your cpu...
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