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Method for performing self-adaption paint to text focus on set up box

A set-top box, self-adaptive technology, applied in the direction of color signal processing circuit, etc., can solve the problem of inconspicuous contrast effect and so on

Inactive Publication Date: 2009-10-14
ZTE CORP
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Problems solved by technology

[0005] The present invention provides a method for self-adaptive coloring of the text focus on the set-top box, which is used to solve the problem of coloring the selected text and its background area in the prior art when the set-top box is coloring the selected text and its background area. The way of color, its contrast effect is not obvious

Method used

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  • Method for performing self-adaption paint to text focus on set up box

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Embodiment Construction

[0019] The used color principle of the present invention is as follows:

[0020] According to the principle of three primary colors, any color light F can be formed by adding and mixing different components of R, G, and B.

[0021] F=r[R]+g[G]+b[B]

[0022] Among them, r, g, b are the coefficients of the three primary colors participating in the mixing respectively. When the three primary color components are all 0 (the weakest), it is mixed into black light; and when the three primary color components are all k (the strongest), it is mixed into white light. By adjusting the values ​​of the three coefficients r, g, and b, various color lights between black light and white light can be mixed.

[0023] In modern color TV systems, three-tube color cameras or color CCD cameras are usually used to take pictures, and then the captured color image signals are color-separated, enlarged and corrected to obtain RGB images, and then the brightness signal Y and Two color difference sig...

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Abstract

The invention discloses a method for adaptively coloring text focus on a set-top box. The complementary color of the scene and the complementary color of the background color are mapped from the RGB color space to the YUV color space, and its brightness value is obtained, and the brightness of the complementary color of the foreground color and / or the complementary color of the background color is adjusted, so that The brightness difference thereof is greater than the preset threshold, and the two colors whose brightness difference is greater than the preset threshold are respectively used as the foreground color and the background color of the text focus. The invention makes the colored foreground text and background color have higher contrast, enables the user to clearly distinguish the selected content, and solves the problem of coloring the foreground text when the set-top box in the prior art colors the selected text focus on the page. The contrast effect of its background color is not obvious.

Description

technical field [0001] The invention relates to digital image display technology, in particular to a method for adaptively coloring text focus on a set-top box. Background technique [0002] Today, with the rapid development of IP broadband networks, multimedia technology and computer technology are increasingly combined with home appliances, and set-top boxes are rapidly becoming popular. People can already browse various information on the Internet through set-top boxes. When browsing web page information through a set-top box, how to conspicuously display the selected text focus in the web page has always been a difficult problem. The browser text focus coloring includes setting the color of the text and the setting of the background fill color. Through HTML (Hypertext Markup Language, super Text Link Markup Language) pages or CSS (Cascading Style Sheets) can directly specify the text color, but the setting of the background fill color is usually done by extending the cus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/64
Inventor 张鹏孟军彭峰朱晓斌
Owner ZTE CORP
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