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Image filtering method and device

A technology for image filtering and image acquisition, applied in image enhancement, image data processing, instruments, etc., can solve the problems of low efficiency of filtering technology and achieve the effect of improving filtering efficiency

Inactive Publication Date: 2014-12-24
深圳深讯和科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide an image filtering method that can improve filtering efficiency for the problem of low efficiency of traditional filtering techniques.
[0004] In addition, it is also necessary to provide an image filtering device that can improve filtering efficiency in view of the low efficiency of traditional filtering techniques

Method used

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  • Image filtering method and device

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Embodiment Construction

[0022] Such as figure 1 Shown, a kind of image filtering method comprises the following steps:

[0023] Step S110, obtaining the pixel to be filtered and the reference pixel of the pixel to be filtered in the image.

[0024] In this embodiment, smoothness analysis is performed on the acquired image, and pixels whose smoothness fluctuations exceed a preset value are regarded as pixels to be filtered that need to be filtered. The pixel value of the reference pixel is reference data for filtering the pixel to be filtered, and the reference pixel is a plurality of pixels whose distance from the pixel to be filtered is a preset distance, such as a plurality of pixels adjacent to the pixel to be filtered, specifically It can be pixels with an interval of 0 around the pixel to be filtered, such as 4 or 8 pixels around a pixel, etc. By extracting adjacent pixels as reference pixels, the accuracy of filtering can be improved, and the filtering efficiency can be improved at the same ti...

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Abstract

The invention provides an image filtering method and device. The method comprises the following steps that pixels, to be filtered, of an image and reference pixels of the pixels to be filtered are obtained; the pixel values of the reference pixels are combined according to the size of data capable of being processed by a processor at a time to obtain combined data; parallel filtering is carried out on the pixels to be filtered based on the combined data. According to the image filtering method and device, the pixels, to be filtered, of the image and the reference pixels of the pixel to be filtered are obtained, the pixel values of the reference pixels are combined according to the size of the data capable of being processed by the processor at a time to obtain the combined data, parallel filtering is carried out on the pixels to be filtered based on the combined data, the data are spliced and combined to carry out calculation, the operational capability of the processor is fully utilized, the multiple pixels are filtered at the same time, and the filtering efficiency is improved.

Description

technical field [0001] The invention relates to digital image processing technology, in particular to an image filtering method and device. Background technique [0002] Filtering an image can reduce the amount of data in the image and improve the coding efficiency of the image. However, the traditional filtering technology uses byte-by-byte sequential filtering, which has low efficiency and slow speed, and does not make full use of the computing power of the processor. Contents of the invention [0003] Based on this, it is necessary to provide an image filtering method that can improve filtering efficiency for the problem of low efficiency of traditional filtering techniques. [0004] In addition, it is also necessary to provide an image filtering device capable of improving filtering efficiency for the problem of low efficiency of traditional filtering techniques. [0005] An image filtering method, comprising the steps of: obtaining a pixel to be filtered in an image ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 肖本汪大崴孔德明
Owner 深圳深讯和科技有限公司
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