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

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

Inactive Publication Date: 2008-02-06
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

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

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Embodiment Construction

[0023] The color principle used in the present invention is as follows:

[0024] Based on the principle of three primary colors, any color light F can be combined with different components of R, G, and B.

[0025] F=r[R]+g[G]+b[B]

[0026] Among them, r, g, b are the coefficients for the three primary colors to participate in the mixing. When the three primary color components are all 0 (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. Adjusting the values ​​of the three coefficients of r, g, and b can mix a variety of colors between black light and white light.

[0027] In modern color TV systems, three-tube color cameras or color CCD cameras are usually used for shooting, and then the captured color image signals are separated, amplified and corrected respectively to obtain RGB images, and then the brightness signals Y and Y are obtained through a matrix conversion circuit. Two color diff...

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Abstract

The present invention discloses a method used for self-adapting coloring on the text focus of a set-top box; while the method comprises the following steps: acquiring the foreground color and the background color, and determining the complemental color of the foreground color and the background color, and mapping the complemental color of the foreground color and the complemental color of the background color in the RGB color space into the YUV color space and acquiring the brightness value of the colors, adjusting the brightness of the complemental color of the foreground color and / or otherwise the complemental color of the background color making the difference of the brightness larger than the preset threshold value and setting the two colors whose brightness difference larger then the preset threshold value as the foreground color and background value of the focus of the text. The present invention can make the colored foreground text has high contrast against the background color thus makes the checked content can be distinguished clearly and solves the problems that the colored up foreground text does not contrast obviously against the background color when prior set-top box colors the focus of the text.

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 being combined with home appliances, and set-top box products are rapidly spreading. People can already browse a variety of information on the Internet through the set-top box. When browsing web page information through a set-top box, how to highlight the selected text focus of the web page has always been a difficult problem. The text focus coloring of the browser includes the color setting of the text and the setting of the background fill color. Through HTML (Hypertext Markup Language, super Text link markup language) page or CSS (Cascading Style Sheets) can directly specify the text color, but the background fill color setting is usually done by extending custom objec...

Claims

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Application Information

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