re ntsc data to rgb for video capture usually you apply r y g u b v after unlevelshifting u and v subtracting from them this matrix multiplication may give results out of rgb space so you have to clamp the resulting bytes to the conversion should be done with arbitrary big integers not floats this applies to yuv data whereas ntsc may have yiq where a degree rotation to u v is buid in o o o brain inside o o o o andre beck abpsoft mehl andre beck irs inf tu dresden de o o o
