JPEG: YCrCb <-> RGB conversion precision

Question

I\'ve implemented rgb->ycrcb and ycrcb->rgb conversion using JPEG conversion formulae from
http://www.w3.org/Graphics/JPEG/jfif3.pdf
(the same at: http://en.wikipedia.o

Answer 1

Another problem is that there is not a 1 to 1 mapping between rgb and YCbCR. There are YCbCr values with no corresponding RGB value and RBG values with no corresponding YCbCR values.