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A dynamically video image processing method and method for identifying video image gray distribution

A video image and dynamic processing technology, applied in image communication, color TV parts, TV system parts, etc., to achieve energy saving and good visual effects

Active Publication Date: 2008-04-30
SHENZHEN TCL IND RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical scheme of the present invention is used to solve the problems of dynamic processing of LCD TV video images and dynamic control of backlight brightness

Method used

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  • A dynamically video image processing method and method for identifying video image gray distribution
  • A dynamically video image processing method and method for identifying video image gray distribution
  • A dynamically video image processing method and method for identifying video image gray distribution

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Embodiment Construction

[0029] The basic principle of the present invention is to carry out statistics on the gray levels of all pixels of a frame image, find out the key area of ​​image distribution in this frame image, then determine the compensation curve of the video image according to the area, and adjust the video image according to the video compensation curve. The data is compensated, and the backlight adjustment coefficient is determined according to the video compensation curve, and then the backlight brightness is dynamically controlled in combination with the average brightness of the frame image.

[0030] The present invention is described in detail below in conjunction with accompanying drawing, please refer to figure 1 Schematic diagram of dynamic processing of video images shown. Firstly, the video data is analyzed, and the backlight adjustment coefficient is determined according to the video compensation curve in a frame of image, and then the backlight brightness is dynamically cont...

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Abstract

The invention discloses a processing method for determining the gray level distribution of a video image and a method for dynamically processing the video image. The processing method for determining the gray level distribution of the video image includes the following steps: equally dividing the gray level of a frame of video signal The degree level is a complex area; the number of pixels in each gray level area in a frame of video image is counted to determine the gray level distribution of the video image. The invention overcomes the disadvantages of the prior art, dynamically reduces the brightness of the backlight under the condition that the brightness of the main part of the image remains unchanged, saves the energy consumption of the LCD TV, and provides better visual effects for TV viewers.

Description

technical field [0001] The present invention relates to the technical field of liquid crystal display, in particular, to the technology of liquid crystal display video image processing. Background technique [0002] At present, most of the shortcomings of LCD TVs have been solved, and they are rapidly entering our lives. For example, the response time of LCD TVs is fast enough, and the viewing angle is large enough to initially meet the viewing requirements. [0003] But existing LCD TV still has some unsatisfactory places, for example no matter what signal the video image is, the power consumption of LCD TV is the same; The picture has a large luminous flux, and long-term viewing will cause visual fatigue. [0004] Because the general video image brightness is low, the load is 30% to 50% full white screen; if it is a movie and other screens, the brightness is lower, the general load is less than 30% full white screen, in this screen, if the backlight is fully bright , whi...

Claims

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Application Information

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IPC IPC(8): H04N5/202G09G3/36
Inventor 施建华冯万良王晖
Owner SHENZHEN TCL IND RES INST
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