On Mon, 7 Sep 2009, IOhannes m zmoelnig wrote:
Miha Tomi wrote:
On Linux using Gem 0.92 from SVN I am using [pix_video] with Logitech
QuickCam 4000 and v4l driver but the red and blue colours are swapped.
Is there a way to instruct [pix_video] to use different colorspace (BGR
instead of RGB)? If not what is the cheapest way to convert from one
colorspace to the other.
a simple _hack_ is to use YUV-colorspace with [pix_video] and then (if you
really need it) [pix_rgba] to convert to RGBA.
Do you mean that the BGR thing is a bug in Gem or what? Because if it
isn't, then YUV might as well be YVU, in which case you'd still use
[pix_colormatrix], but possibly with different constants... what is
[pix_colormatrix] supposed to do on a YUV image ? are its coefficients
still RGB-wise in that case?
_ _ __ ___ _____ ________ _____________ _____________________ ...
| Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801
_______________________________________________
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list
