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Image processing method, device and system

An image processing device and image processing technology, applied in the field of image processing, can solve problems such as low compression efficiency, large differences in original image blocks, and a large number of reconstruction dictionaries, so as to improve reconstruction quality, reduce variance, and increase compression rate and the effect of reconstruction quality

Active Publication Date: 2018-06-19
XIAN WANXIANG ELECTRONICS TECH CO LTD
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Problems solved by technology

However, when compressing images such as characters and lines, due to the rich details of the strokes and the influence of various colors, shadows, fonts, sizes, positions and other factors, the original image blocks collected are very different, making the number of reconstruction dictionaries established is huge and heavy. The structural effect is not ideal, resulting in the problem of low compression efficiency

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  • Image processing method, device and system
  • Image processing method, device and system
  • Image processing method, device and system

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Embodiment Construction

[0080] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0081] An embodiment of the present disclosure provides an image processing method, such as figure 1 As shown, the image processing method method includes the following steps:

[0082] 101. Acquire training sample images.

[0083] In the embodiment of the present disclosure, the training sample images are a preset image set, and these training sample images contain different colors, ...

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Abstract

The invention provides an image processing method, device and system, which relate to the technical field of image processing. A compact and efficient training base dictionary can be built, and the compression rate and the quality of reconstruction can be effectively improved. In the specific technical scheme, a training sample image is acquired; the training sample image is blocked to obtain at least one training sample image block; each training sample image block is subjected to gray scale quantization to obtain a first gray scale image block of each training sample image block; and all first gray scale image blocks are subjected to dictionary learning to obtain a training base dictionary. The method, the device and the system are used for image compression and decompression.

Description

technical field [0001] The present disclosure relates to the technical field of image processing, and in particular, to an image processing method, device and system. Background technique [0002] With the continuous improvement of information technology, there are more and more demands for various office digital image and video transmission. Sparse coding, as a signal coding method, has shown great potential in the field of image compression. Sparse coding often aims at the original image block, and achieves image compression by establishing a reconstruction dictionary. However, when compressing images such as characters and lines, due to the rich details of the strokes and the influence of various colors, shadows, fonts, sizes, positions and other factors, the original image blocks collected are very different, making the number of reconstruction dictionaries established is huge and heavy. The structural effect is not ideal, resulting in the problem of low compression eff...

Claims

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Application Information

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IPC IPC(8): G06T9/00G06K9/46H04N19/124H04N19/176H04N19/48
CPCH04N19/124H04N19/176H04N19/48G06T9/007G06V10/513G06V10/40
Inventor 炎喆苏睿熊磊
Owner XIAN WANXIANG ELECTRONICS TECH CO LTD
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