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Over-drive image compression method

A compression method and overdrive technology, applied in the field of video processing, can solve the problems of low compression ratio, inability to meet the increase of LCD panel size and resolution improvement, etc., and achieve the effect of improving the image compression ratio

Active Publication Date: 2011-03-30
ANALOGIX CHINA SEMICON
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Problems solved by technology

[0005] The present invention aims to provide an overdrive image compression method, which can solve the problem that the image compression method used for LCD overdrive in the prior art simply uses the BTC algorithm, and the compression ratio is low, which cannot meet the requirements of increasing the size of the LCD panel and improving the resolution. The problem

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Embodiment Construction

[0016] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0017] figure 1 A flow chart of an overdrive image compression method according to an embodiment of the present invention is shown, including the following steps:

[0018] S102, dividing the image content into smooth blocks and non-smooth blocks;

[0019] S104, compressing the smoothing block by means of an average algorithm;

[0020] S106. Compress the central non-smooth area of ​​the non-smooth block using the BTC algorithm.

[0021] In this embodiment, the video content is divided into smooth blocks and non-smooth blocks, and the smooth blocks are compressed using the mean value algorithm, and the non-smooth areas of the non-smooth blocks are compressed using the BTC compression algorithm, which improves the image compression ratio. , can meet the requirements of increasing the size of the liquid crystal panel and improving the...

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Abstract

The invention provides an over-drive image compression method, which comprises the following steps: dividing image content into a smooth block and a non-smooth block; compressing the smooth block by adopting a mean algorithm; and compressing a central non-smooth area of the non-smooth block by adopting a BTC algorithm. By dividing the image content into the smooth block and the non-smooth block, further compressing the smooth block by adopting the mean algorithm and compressing the central non-smooth area of the non-smooth block by adopting the BTC compression algorithm, the method improves the image compression ratio, can meet the requirements of increasing the size of a liquid crystal panel and improving the resolution, and solves the problems that the image compression method used for LCD over-drive in the prior art has comparatively low compression and cannot meet the requirements of increasing the size of the liquid crystal panel and improving the resolution due to pure BTC algorithm.

Description

technical field [0001] The invention relates to the field of video processing, in particular to an overdrive image compression method. Background technique [0002] Existing image compression methods for LCD (Liquid Crystal Display, liquid crystal display) overdrive are usually based on BTC (Block Truncation Coding, block truncation coding) algorithm. [0003] BTC is a block-based compression method, which divides each frame of image into blocks of a certain size. The commonly used block size is 1×4 (that is, 1 row and 4 columns), and the image data in the block is compressed. The basic principle of BTC is to express the image data in the block with only two colors, so as to achieve the purpose of compression. Therefore, the essence of BTC is a binary compression method. [0004] In the process of realizing the present invention, the inventor found that in the prior art, if the image content in the block is more than two colors, for example, a 1×4 block may have 4 complete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36H04N7/26H04N19/176H04N19/182
Inventor 张秀峰
Owner ANALOGIX CHINA SEMICON
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