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Hue cutting system and method

A hue and color gamut technology, applied in the hue segmentation system and its segmentation field, can solve the problems of computing time consumption, large memory storage space, and high complexity, and achieve the effect of saving usage

Active Publication Date: 2009-06-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the calculation process uses a complex conversion matrix to perform calculations when converting between different color spaces, its complexity is quite high and it consumes a lot of computing time
In addition, when calculating image data, it is necessary to store the calculated data. When the calculation is more complicated and takes longer, the memory storage space required is also larger, which increases the cost of the image device.
[0004] Therefore, it is necessary to develop a novel hue segmentation method to solve the above-mentioned problems of a large number of complex operations and time-consuming calculations.

Method used

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Embodiment Construction

[0033] Referring to FIG. 2 , it shows a schematic diagram of a hue segmentation system according to an embodiment of the present invention. The hue segmentation system is suitable for image systems, such as liquid crystal displays, printers, scanners, digital cameras, and other image generating devices. The hue segmentation system mainly includes a hue segment generation module 200, a segment area calculation module 202, a segment An area difference calculation module 204 , a comparison unit 206 and an additional hue section generation module 208 .

[0034] The hue section generating module 200 calculates a plurality of basic hue angles (hue angles) of a color gamut and a maximum chroma value (chroma) corresponding to each basic hue angle from the input color data of the basic colors, so as to generate a color in the color gamut Multiple hue segments. For the sake of illustration, the segment formed by 360 hue angles is defined as a reference hue segment, and each hue segment...

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Abstract

The method comprises: according to the color data of even colors in color domain, generating even numbers of hue sections; calculating the area difference between the total area of hue sections and said hue sections; if the difference value is more than a preset accuracy value, then searching a proper peak in the hue sections to partition the basic hue sections in order to form the add-on hue sections; repeating the above step until the area difference between area difference between the total area of hue sections and said hue sections is less than the preset accuracy value.

Description

technical field [0001] The present invention relates to a color processing method and system, in particular to a hue segmentation system and method (HUE SEGMENTATION SYSTEM AND METHODTHEREOF) for determining the color gamut range of an image device. Background technique [0002] In the prior art, in order to construct the color gamut of an image device, it is usually necessary to process each hue angle (hue angle) of 360 degrees in a color space. As shown in Figure 1, the existing hue segmentation schematic diagram. When constructing a color gamut range of 100, in a color space (such as CIE L * a * b * ) use each hue angle 102 to find a gamut boundary 104, and form a gamut range 100 with 360 hue pages. Different hue angles 102 represent different colors, and different chroma represents the vividness of the color, that is, its color saturation. [0003] After the hue pages are formed with the hue angles 102 of 360 degrees, the colors included in each hue angle are mapped...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/60H04N1/46H04N9/64
Inventor 汪德美陈鸿兴
Owner AU OPTRONICS CORP