1997.05.21 10:09 "Re: unknown field with tag 34377 (0x8649)", by John Cupitt

the simplest method is: R = 255 - C; G = 255 - M; B = 255 - Y; ignore K. Of course, the resulting RGB colors might not be axact; there are

It depends on the pcr setting used by the separator, but this will probably give rather washed-out dark areas. Try subtracting K from each of RGB as well, ie. R = (255 - C) - K;... etc, for a slightly better result. And clip against zero.

John

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John Cupitt, john@giorgio.hart.bbk.ac.uk, +44 (0)171 930 2108
VASARI Lab, The National Gallery, Trafalgar Square, London, WC2N 5DN