Raster scanning principle-based image block segmentation and processing method

A technology of raster scanning and image segmentation, which is applied in image data processing, image analysis, image enhancement and other directions, and can solve the problems of limited number of image blocks and less image information.

Inactive Publication Date: 2017-09-15
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

The number of image blocks obtained by the traditional image block method is limited, so the obtained imag

Method used

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  • Raster scanning principle-based image block segmentation and processing method
  • Raster scanning principle-based image block segmentation and processing method

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Embodiment 1

[0020] refer to figure 1 , 2 This method is described in detail.

[0021] An image block method for extracting information in an image based on the principle of raster scanning, specifically comprising the following steps:

[0022] 1. A 256*256 size image is divided into 3*3 size image blocks starting from (x, y) (x=1,2,3; y=1,2,3) coordinate points, and the step size is set is 1.

[0023] 2. A total of 3*3=9 blocks are performed, and the number of obtained image blocks is p 1 =p 2 =p 4 =p 5 =85*85,p 3 =p 6 =p 7 =p 8 =85*54,p 9 =84*84.

[0024] 3. Finally get the number of image blocks p=p 1 +p 2 +…+p 9 .

[0025] 4. Extract image information from the divided image blocks for various image processing algorithms.

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Abstract

The invention discloses a raster scanning principle-based image block segmentation and processing method. Inspired by a raster scanning principle in an optical system, an image is divided into a plurality of image blocks according to an adjustable step length from top to bottom and from left to right, starting from initial coordinates, and image information is extracted from the divided image blocks and applied to various image processing algorithms. Particularly, the method is applied to super-resolution image reconstruction and image enhancement, and a very good effect is achieved.

Description

Technical field: [0001] The invention belongs to the technical field of digital image processing, and in particular relates to an image block method for extracting information in an image based on a raster scanning principle. Background technique: [0002] When the raster scan monitor displays graphics, the electron beam scans according to the fixed scan lines and the prescribed scan order. The electron beam first starts from the upper left corner of the fluorescent screen, sweeps a horizontal line to the right, then quickly sweeps back to a position slightly lower on the left, and then sweeps the second horizontal line, and sweeps down in this fixed path and order until the last horizontal line, That is, scanning of the entire screen is completed. The number of image blocks obtained by the traditional image block method is limited, and the obtained image information is also less, which cannot well meet the requirements of various image processing algorithms. Invention co...

Claims

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Application Information

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IPC IPC(8): G06T7/10G06T3/40
CPCG06T3/4053G06T7/10G06T2207/20021
Inventor 杨晓苹李剑飞陈志宏林海杰刘君
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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