Re: [GEM-dev] pix_chroma_key not acting as I expect?

Since I don't understand YUV as a colorspace. Also I can load a video frame into gimp/photoshop and see what my key colour is in RGB, HSV, CMYK etc.. but not YUV.

Maybe a YUV colour picker in gem would help. ;)

I still could not get pix_chroma_key to key on "value 16,16,16" remember our green is 0,240,0 not 0,255,0. (which I guess is YUV 0,0,0)? what should the YUV range be like for this video?

Thanks for your help Chris, .b.

chris clepper wrote:

On 4/24/06, *B. Bogart* <ben@ekran.org mailto:ben@ekran.org> wrote:

Ah, so when I change the chain to RGB via "colorspace rgb" to the
src pix,
the chroma_key object still expects YUV values? Even though the help
patch
clearly says you can use RGB values...

maybe only the YUV part is working? 

No, it does RGB. But if it is a video source, why go RGB?