search for: rgb8

...ltiple rgb colours with transparency (alpha = 0.5) and then combining these colours using colorRampPalette(). I am able to use the resulting colour ramp, but it has no transparency. # Make terrain colour ramp rgb7 <- rgb(red=0, green=255, blue=77, alpha = 0.5, maxColorValue = 255) rgb8 <- rgb(red=26, green=255, blue=0, alpha = 0.5, maxColorValue = 255) rgb9 <- rgb(red=128, green=255, blue=0, alpha = 0.5, maxColorValue = 255) rgb10 <- rgb(red=230, green=255, blue=0, alpha = 0.5, maxColorValue = 255) rgb11 <- rgb(red=255, green=255, blue=0, alpha = 0.5...

Hi, I've been trying to use libtheora-experimental (libtheoraenc and libtheoradec) to encode a webcam feed in real-time, to be decoded also in realtime by a second party via XXX-IP, with - unfortunately - not so good results. I'm using custom written functions to convert from RGB8 to YUV420 and back and, although not much processor-efficient, they do what they're supposed to nicely. Unfortunatelly, I get a lot of "block-artifacts" in the process. With one webcam, the image starts all "blocky" and then, if you keep the image still, it gets better. I...

Two "updated" patches, according to Michel Daenzers review. See separate e-mail for details. 01/10: Replaces original 01/09 -- Same code, updated commit message. 10/10: Just for demonstration, not for application to ddx.