Deleted: Chromakey webcam


    Apr 20 2006 | 11:25 pm
    Deleted: Sorry didn't realise that the mailing list posts here automatically.

    • Apr 20 2006 | 11:39 pm
      This looks like you need to convert the 1 plane left input to
      chromakey in your patch to a 4 plane matrix so that you can composite
      in ARGB (otherwise you're just compositing the binary image with the
      alpha channel, which is all white). Try inserting a jit.matrix 4 char
      320 240 between cv.jit.binedge and jit.chromakey.
      From the sound of what you want to do, it seems like you might want
      to look at the jit.chromakey-3sources.pat example, using your binary
      image as the alpha channel (don't even need chromakey here, if this
      is the case, you can just use the output o cv.jit.binedge as the
      alpha mask for jit.alphablend).
      Hope this helps,
      Joshua
    • Apr 21 2006 | 12:18 am
      Cheers Joshua,
      Inserting the jit.matrix 4 char where you suggested worked perfectly! So
      easy to overlook things once you become frustrated with something not
      working!
      Jonathan