Colour display apparatus and method of coding a colour image

Details Colour display apparatus and method of coding a colour image Colour display apparatus and method of coding a colour image

G - Physics

09

G

375/4

G09G 3/00 (2006.01) G09G 5/02 (2006.01) H04N 1/64 (2006.01)

Patent

CA 1229438

ABSTRACT The invention provides a display apparatus for producing a colour imagein which the colour of each picture element is defined by the intensities of component red, blue and green primaries and is coded as a binary number having r bits defining 2r intensity levels for red, g bits defining 2g intensity levels for green, and b bits defining 2b intensity levels for blue, where g < 7, (g - r) = 1 or 2, and (g - b) = 2. In a particularly advantageous embodiment of the invention the image has a resolution of substantially 4 pels per mm or greater, and g < 4. The invention also includes a method of coding a colour image as defined above.

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