Image processing method and device

An image processing device and image processing technology, applied in the field of data processing, can solve problems such as increasing the computational burden of the encoding end

Active Publication Date: 2013-12-11
江西欧菲炬能物联科技有限公司
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Problems solved by technology

[0003] The image coding algorithm in the new video coding standard is more refined, and the division of image data is getting smaller and smaller. For example, the minimum processing unit of H.264 for luminance data is 4x4. The advantage of dividing the fine block of the image is to greatly improve the coding compression Performance, but at the same time there are also shortcomings, that is, it increases the computational burden on the encoding side

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Embodiment Construction

[0066] The embodiment of the present invention provides an image processing method and device, which can reduce the calculation load of the coding end as much as possible while ensuring the image compression efficiency.

[0067] see figure 1 , an embodiment of the image processing method in the embodiment of the present invention includes:

[0068] 101. The image processing device divides the collected image into macroblocks;

[0069] The image processing device may divide the collected current frame image into several macroblocks, and the specific division process is not limited here.

[0070] 102. For the current macroblock, the image processing device calculates a discrete characteristic coefficient of the current macroblock;

[0071] After the division of the macroblock is completed, for the current macroblock, the image processing device can calculate the discrete characteristic coefficient of the current macroblock.

[0072] It should be noted that the current macrobl...

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Abstract

The embodiments of the invention disclose an image processing method and device. The method provide by the embodiments of the invention comprises: the image processing device dividing acquired images into macro-blocks; for a current macro-block, the image processing device calculating the discrete characteristic coefficient of the current macro-block; when the discrete characteristic coefficient is greater than or equal to a preset first threshold, the image processing device extracting the sub-boundary component value of the current macro-block by using an edge extraction operator; the image processing device calculating the sub-block edge intensity coefficient of the current macro-block according to the sub-boundary component value; the image processing device determining an image dividing mode according to the sub-block edge intensity coefficient and a preset threshold set; and the image processing device outputting the image dividing mode. The embodiments of the invention also provide the image processing device. The method and device provided by the invention can reduce the calculating burden at a coding end under the condition that the image compression efficiency is ensured.

Description

technical field [0001] The present invention relates to the field of data processing, in particular to an image processing method and device. Background technique [0002] With the continuous development of video applications, video coding standards and algorithms have also been developed rapidly. For example, compared with the traditional coding standard H.263, the latest video coding standard H.264 has greatly improved image compression efficiency. [0003] The image coding algorithm in the new video coding standard is more refined, and the division of image data is getting smaller and smaller. For example, the minimum processing unit of H.264 for luminance data is 4x4. The advantage of dividing the fine block of the image is to greatly improve the coding compression Performance, but at the same time, there are also shortcomings, that is, it increases the computational burden on the encoding side. Contents of the invention [0004] The embodiment of the present inventio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26G06T5/00
Inventor 徐苏珊
Owner 江西欧菲炬能物联科技有限公司
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