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Fleck domain positioning method in digital picture

A technology of digital image and positioning method, which is applied in the direction of character and pattern recognition, instruments, computer parts, etc., can solve the problems of complex methods and unfavorable hardware implementation, and achieve the effect of accurate positioning

Inactive Publication Date: 2009-06-17
BEIJING SUPERPIX MICRO TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the positioning method of the spot field, such as FloodFill (filling with water), requires repeated scanning of the image, and each scan realizes the positioning of a spot field, which has the disadvantages of complex methods and unfavorable hardware implementation.

Method used

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  • Fleck domain positioning method in digital picture
  • Fleck domain positioning method in digital picture
  • Fleck domain positioning method in digital picture

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0017] Such as figure 1 As shown, the invention provides a kind of localization method of speckle field in the digital image, comprising:

[0018] Step 1: Scan the digital image row by row or column by column;

[0019] Step 2: extract pixels that meet the preset gray value requirements from the scan results of the row or column to confirm each first stroke;

[0020] Step 3: Create each spot field according to each first stroke in the first confirmed row or column containing the first stroke;

[0021] Step 4: Update the blob domains to achieve positioning through the connected relationship between the first stroke in the adjacent row or column and the first stroke in each blob domain.

[0022] It can be known that in the positioning method provided by the embodiments of the present invention, the scene image is scanned row by row or column by column to obtain a plurality of first strokes composed of pixels that meet the preset gray value requirements, and then according to th...

Embodiment 2

[0025] Such as figure 1 As shown, the invention provides a kind of localization method of speckle field in the digital image, comprising:

[0026] Step 1: Scan the digital image row by row or column by column;

[0027] Step 2: extract pixels that meet the preset gray value requirements from the scan results of the row or column to confirm each first stroke;

[0028] Step 3: Create each spot field according to each first stroke in the first confirmed row or column containing the first stroke;

[0029] Step 4: Update the blob domains to achieve positioning through the connected relationship between the first stroke in the adjacent row or column and the first stroke in each blob domain.

[0030] Specifically, step 1 of scanning the digital image row by row or column by row is to scan the digital image row by row or column by column to obtain a scan result of each row or column, and the scan result is more than one pixel point.

[0031] Such as figure 2 As shown, specifically...

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Abstract

The invention provides a method for positioning dot domains in digital image, comprising: scanning a digital image column by column or line by line; extracting the pixel points matching a preset gray value demand from the result of column or line scanning to determine each first stroke; according to each first stroke in the column or line containing the first stroke, building every dot domain; using the connection relation among the first strokes in adjacent columns or lines and the first stroke of every dot domain to refresh the dot domains to realize location. The positioning method only needs to scan a scene picture column by column or line by line in one time, to obtain the information of all dot domains of the image, thereby accurately positioning the dot domains in the image.

Description

technical field [0001] The invention relates to the technical field of digital image processing, in particular to a method for locating speckle domains in a digital image. Background technique [0002] With the rapid development of computer technology, digital images are more and more widely used, but in the process of acquiring scene images, usually due to repeated refraction of the lens, reflection or scattering on the inner surface of the lens barrel, scattering on the inner surface of the camera, etc. The speckle domain is mixed into the scene image, and the speckle domain can be an area of ​​various colors that is too bright or darker than the surrounding area. The existence of the speckle domain greatly affects the clarity of the image. [0003] Therefore, to process the scene image to remove the speckle domain, the first thing to solve is to locate the speckle domain, so as to effectively carry out the subsequent processing steps. [0004] At present, the positioning...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/22
Inventor 张国华程杰黄海军
Owner BEIJING SUPERPIX MICRO TECHNOLOGY CO LTD