| 摘要 |
The present invention relates to a method for coding a signal which describes a colour picture as a function of three tristimulus values (X, Y, Z), to produce a signal which describes the colour picture as a function of n independent display primaries (R, G, B, D1, ..., Dn-3), with n > 3. In this method, for each colour to be represented, drive signals for the display primaries (R, G, B, D1, ..., Dn-3) are calculated via a comparison of the location of that colour with respect to a straight line (GR, D2R, ...) in the chromaticity diagram. A number of the drive signals are mutually exclusive, e.g. G, R and D2 excluding the other signals. The invention also relates to a display system comprising n display primaries, where n > 3.
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