System and method to generate multiprimary signals
First Claim
1. A method for displaying images in a multiprimary display system using N colors, comprising:
- receiving a video input signal representation of pixel intensity and hue using M-dimensional color vectors, where M<
N;
determining an input gray scale weighting of the M-dimensional color vectors;
converting the M-dimensional color vectors into (N-K)-dimensional and N-dimensional color vectors >
+M-dimensional color vectors, including;
if the determined weighting is less than a given threshold, converting the M-dimensional color vectors into (N-K)-dimensional color vectors, where (N-K)>
=M, with the weightings of K of the colors set to zero; and
if the determined weighting is greater than the given threshold, converting the M-dimensional color vectors into N-dimensional color vectors using weightings for all of the K colors; and
displaying the image with the N colors using the (N-K)-dimensional and N-dimensional color vectors.
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Abstract
System and method for generating multiprimary signals with optimization for bit depth for use in display devices. A preferred embodiment comprises converting an input color signal into an output color signal, wherein the number of colors in the output color signal is less than a number of colors used in a display system, when a weighting of the input color signal is less than a specified threshold, and converting the input color signal into an output color signal, wherein the number of colors in the output color signal is equal to the number of colors used in the display system, when the weighting of the input color signal is greater than the specified threshold. The use of fewer colors eliminates low bit depth colors, allowing increased dither quality in dimmer images.
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Citations
13 Claims
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1. A method for displaying images in a multiprimary display system using N colors, comprising:
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receiving a video input signal representation of pixel intensity and hue using M-dimensional color vectors, where M<
N;determining an input gray scale weighting of the M-dimensional color vectors; converting the M-dimensional color vectors into (N-K)-dimensional and N-dimensional color vectors >
+M-dimensional color vectors, including;if the determined weighting is less than a given threshold, converting the M-dimensional color vectors into (N-K)-dimensional color vectors, where (N-K)>
=M, with the weightings of K of the colors set to zero; andif the determined weighting is greater than the given threshold, converting the M-dimensional color vectors into N-dimensional color vectors using weightings for all of the K colors; and displaying the image with the N colors using the (N-K)-dimensional and N-dimensional color vectors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification