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Colour signal processing device and method for efficient storage colour gamut

A color signal and processing device technology, which is applied in the field of color gamut devices, can solve problems such as color signal color gamut abnormalities, and achieve effective storage and use

Inactive Publication Date: 2003-09-24
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the processed color signal displayed by the monitor may be anomalous in the color gamut

Method used

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  • Colour signal processing device and method for efficient storage colour gamut
  • Colour signal processing device and method for efficient storage colour gamut
  • Colour signal processing device and method for efficient storage colour gamut

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Embodiment Construction

[0052] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like parts throughout. Components will be described below in order to describe the present invention with reference to the drawings.

[0053] image 3 is represented in the CbCr color space figure 2 projection diagram.

[0054] According to one aspect of the present invention, the color gamut of the YCbCr color space is expressed in the CbCr color space of Y=0. As represented by Mathematical Expression 3 below, the CbCr color space is represented as a polar coordinate system.

[0055] (mathematical expression 3) C = Cb 2 + Cr 2 H = tan - 1 Cb Cr ...

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Abstract

A color signal processing device and method thereof. The device includes: a calculating unit calculating brightness, chroma and hue of an input RGB color signal; a coordinate storage unit storing predetermined coordinates including brightness and chroma of colors classified according to a predetermined level; a color gamut determining unit, determining a color gamut to display the input RGB color signal; and a signal processing unit digitizing the input RGB color signal in a predetermined color gamut.

Description

[0001] This application claims priority to Patent Application No. 2002-13582 filed on March 13, 2002 at the Korean Intellectual Property Office, the contents of which are incorporated herein by reference. technical field [0002] The present invention relates to an apparatus and method for processing a color signal input to a display device, and more particularly to an apparatus and method for processing a color signal capable of efficiently storing a color gamut for color signal processing and using the stored color gamut. Background technique [0003] In general, the color of an object that appears as a result of light penetration, absorption, or reflection is generally referred to as "actual color." Actual colors are classified into achromatic colors such as white, gray and black, and chromatic colors such as red and blue. [0004] Meanwhile, white is a light color, black is a dark color, and gray is an intermediate color due to the brightness of each color. The brightne...

Claims

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Application Information

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IPC IPC(8): H04N9/64G09G5/02H04N1/60
CPCH04N1/6058H04N9/64
Inventor 金文喆吴才焕梁承埈
Owner SAMSUNG ELECTRONICS CO LTD
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