Method, device for regulating gamma curviline

A technology of gamma curve and adjustment method, which is applied to parts of color TV, parts of TV system, TV, etc., can solve the problems such as the inability to dynamically adjust the contrast of the picture and the fixed slope of the tangent line of the gamma curve, so as to improve the clarity degree and viewing effect

Inactive Publication Date: 2010-08-18
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for adjusting the gamma curve, which aims to solve the problem that the tangent slope of the gamma curve in the bright field and dark field is fixed and the contrast of the picture cannot be dynamically adjusted in the prior art

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  • Method, device for regulating gamma curviline
  • Method, device for regulating gamma curviline

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] In the present invention, by dynamically changing and adjusting the gamma curve according to the average pixel statistics of each gray level, the clarity and viewing effect of the dark field picture are greatly improved, making the TV more humanized, and this technology is only for large The gamma adjustment of the area dark field image will not affect the contrast effect of the general bright field image.

[0033] Figure 1 shows the flow of the gamma curve adjustment method provided by the present invention, which is described in detail as follows:

[0034] In step S101, the average pixel ...

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Abstract

The invention is suitable for the video product field and provides a gamma curve adjustment method, a device and equipment. The method comprises the following steps: the statistic of the average pixel data of the current gray scale is obtained and whether a current frame is a dark-field frame or not is judged; when the invention judges that the prior frame is the dark-field frame, the shadow range suppression coefficient is changed, the gamma curve is adjusted dynamically and the contrast of the dark-field frame is improved. With the steps, the gamma curve is dynamically changed and adjusted through the average pixel statistic of the various gray scales, thereby greatly improving the definition and the view effect of the dark-field frame and ensuring that a television is more humanistic. The technology only aims at the gamma adjustment for the large area of the dark-field frame so that the contrast effect of a general bright-field frame can not be influenced.

Description

technical field [0001] The invention belongs to the field of video products, and in particular relates to a method and device for adjusting a gamma curve. Background technique [0002] In the prior art, the contrast is usually adjusted passively. When the user thinks that the current contrast is insufficient, he either adjusts the contrast through the image mode, or adjusts the contrast effect he thinks through the contrast menu. However, the content of the picture is changing arbitrarily, and it may change from bright field to dark field or dark field to bright field. The contrast that the user sets at a certain moment can only be the best at that moment like this, and just can't reach the best viewing effect to the picture that changes greatly. [0003] The gamma curve plays a big role in improving the picture quality, it can make the black of the picture blacker and the white of the picture whiter, and can significantly improve the contrast of the main picture while ensu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/202H04N5/57H04N9/69
Inventor 杨秀凤徐志芳吴肇滨王德闯
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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