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Background processing and table establishing method for gray-scale image

A background processing and gray-scale image technology, applied in the fields of copying and printing, can solve the problems of low efficiency, time consumption of handling three times, and high resource occupation, so as to reduce working time, reduce time for table building, and optimize table building The effect of the program

Active Publication Date: 2017-07-11
杭州朔天科技有限公司 +1
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  • Application Information

AI Technical Summary

Problems solved by technology

The image needs to be traversed three times, and each image needs to be transported three times, that is to say, it takes time to transport three times, and the efficiency of resource occupation is not high

Method used

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  • Background processing and table establishing method for gray-scale image
  • Background processing and table establishing method for gray-scale image
  • Background processing and table establishing method for gray-scale image

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with accompanying drawing.

[0023] In the gray scale image background processing table building method of the present invention, the image is first stored in the memory according to the pixel value of the pixel point, and the data is directly transferred to the table module by inputting 1 into the memory, such as figure 1 shown.

[0024] Such as figure 2 As shown, after the data enters the memory, it is divided into index bits and flag bits according to the rules, and then counts and operates on the storage space. The read operation on the storage space is not only the cache module, so a read control module is also required to perform arbitration. The positions of index bits, flag bits and count bits in the cache are as follows image 3 Shown, of course, can also adjust the position of each other.

[0025] 2 1 2 3 4 5 6 7 8 4 4 3 6 7 5 8 1 1 … … … … … … … …...

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Abstract

The invention discloses a background processing and table establishing method for a gray-scale image. A table establishing module is additionally arranged in a detection module. In the table establishing manner, the statistics on the to-be-acquired image information is conducted. After the completion of the first traversal process, the table establishing is completed. The statistics and the calculation are conducted based on data in an established table, so that parameters, which cannot be obtained through the one-time traversal process, can be obtained. Compared with the existing counting manner, the table establishing manner is selected. When an image is fed for the first time, the number of occurrence times of each pixel value in the image is counted. Meanwhile, the table-building scheme is optimized, and the table-building time is greatly reduced. During the solving process of a difference sum, an average deviation and other parameters, only the number of different pixel values is traversed. Therefore, the working time is greatly reduced for million pixel points in the image.

Description

technical field [0001] The invention relates to the fields of printing and copying, in particular to a grayscale image background processing table building method. Background technique [0002] In today's life, printing, copying, etc. are used more and more. However, the paper is easy to get dirty and yellow, which will affect the overall appearance or the accuracy of the document. Denoising the background of the image is to whiten the paper or remove noise. [0003] In the existing technology, the gray image background processing and table building are generally realized by software methods, and there is no related hardware method. Scan the entire image first to obtain some statistical data values, and traverse again, and use the divider calculation module to obtain the parameters required by the calculation module, and finally traverse to process pixel values. [0004] The background removal algorithm is to perform a series of denoising, restoration and removal on the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/60
CPCG06T1/60G06T2200/28
Inventor 娄涛涛
Owner 杭州朔天科技有限公司
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