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Chroma signal processing method

A processing method and chrominance signal technology, applied in the field of image processing, can solve problems such as weak layering and inability to completely restore the original appearance of the image, so as to achieve the effect of improving the image layering and making the picture vivid and real

Active Publication Date: 2010-05-26
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

After the original image is processed by the chroma of the CPU, the color processing of the output image cannot completely restore the original appearance of the image, and the sense of layering is not strong

Method used

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  • Chroma signal processing method
  • Chroma signal processing method
  • Chroma signal processing method

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Embodiment

[0038] Such as figure 2 As shown, the display system includes a CPU, a color gamut space enhancement module, and a display screen, and the CPU is connected to the display screen through the color gamut space enhancement module.

[0039] The color gamut space enhancement module accepts the input signal as TTL level, and the signal output from the CPU is LVDS differential signal. An LVDS / TTL converter is arranged between the CPU and the color gamut space enhancement module; if the interface of the display screen is a TTL level interface, the color gamut space enhancement module is directly connected to the display screen. However, the image signal input interface of the current plasma and liquid crystal display screens is generally an LVDS interface, so a TTL / LVDS converter is also connected between the color gamut space enhancement module and the display screen.

[0040] If the original image signal input to the color gamut space enhancement module is in RGB format, it needs ...

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Abstract

A color signal processing method relates to an image processing technology, in particular to a method for strengthening processing of color signal of image signal. The invention discloses a color processing method for image which can improve image color purity and enhance bright degree of image color. The color signal processing method provided by the invention comprises the following steps: a. calculating a color phase angle and color saturation inputted into each pixel point of original image; b. determining whether the pixel point is in the strengthening area or not, if yes, the step c is got into; if not, step e is got into; c. getting into step d after color phase strengthening adjustment of color phase angle of pixel point; d. applying color saturation strengthening adjustment on color saturation of pixel point; e. preserving color signal of the pixel point and determining whether disposition is finished or not, if yes, an image is sent out; if no, the next pixel point is processed, and then the step b is returned back . the beneficial effect of the invention is that the invention can improve lays of graphics of image so that the picture becomes more vivid and true.

Description

technical field [0001] The invention relates to image processing technology, in particular to a method for enhancing the chrominance signal of the image signal. Background technique [0002] For general image display, the image signal in YUV format or RGB format is processed by the CPU in the display system, and the processed upper-screen signal is sent to the display screen. After the original image is processed by the chroma of the CPU, the color processing of the output image cannot completely restore the original appearance of the image, and the sense of hierarchy is not strong. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an image chroma processing method, which can improve the image color purity and enhance the brightness of the image color. [0004] The technical scheme that the present invention adopts for solving the above-mentioned technical problem is: chrominance signal processing method, comprise...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/68H04N9/64
Inventor 卢结张俊喜苏荣强吴久清
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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