util to convert RGB #s <-> Y Cr Cb?

[FredThompson]

I'm looking for a utility which will convert RGB color values to Y Cr Cb. Does such a thing exist?

I'd like to be able to pick a color in a paint program then get the conversion for use with IfoEdit modification of menu colors.

[b0b0b0b]

the avsforum guys might know

[Mug Funky]

photoshop converts to "LAB" colour, which is pretty much the same thing.

i don't think it's conversion is lossless or clamped in the CCIR-601 range like you'd get in avisynth though.

you could use avisynth's image writer to make an eBMP and then load this as RAW into photoshop... i'm not sure what will happen there though :)