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Method for identifying character in image

An image and character technology, applied in the field of image processing, can solve the problem of character sticking, unable to deal with the problem of character sticking, etc., to achieve the effect of high recognition quality, easy implementation, and saving system resources

Inactive Publication Date: 2013-03-20
DAWNING INFORMATION IND BEIJING
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AI Technical Summary

Problems solved by technology

[0005] Aiming at the defect that the existing technology cannot deal with the problem of character sticking, the present invention provides a method for recognizing characters in images
Through the technical solution described in the present invention, the technical problem of how to deal with the character sticking in the process of character recognition is solved

Method used

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  • Method for identifying character in image
  • Method for identifying character in image

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no. 1 example

[0034] Compared with the first embodiment, this embodiment adds step S306.

[0035] Wherein, in step S306, according to the projection value at the cut point of the second segmentation and the second preset threshold, it is judged whether the area at the cut point of the segmentation again is a character area.

[0036] In the process of character recognition, sometimes there may be some non-character areas between a string of characters. At this time, it is necessary to judge whether the area is a character area according to the result of the segmentation again. In this embodiment, the main way of judging is to compare the sum of the projected values ​​at the tangent points of the re-segmentation with the predetermined threshold. Since the conglutinated parts of the general characters are very small, if the re-segmentation is carried out according to the standard character width If the sum of the projection values ​​at the point of tangency obtained by dividing is too large, ...

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Abstract

The invention provides a method for identifying a character in an image. The method is characterized by comprising the following steps: S1, longitudinally projecting a binary image acquired by the image; S2, segmenting the image for the first time according to the longitudinally projected projection value and a first preset threshold value to acquire character width; and S3, segmenting the image for the second time according to the character width. By the method for identifying the character in the image, the character can be identified from the image well and accurately, the identification quality is high, the identification process is easy to implement, and system resources are saved.

Description

technical field [0001] The present invention relates generally to the field of image processing, and more particularly to a method of recognizing characters in an image. Background technique [0002] In today's computer applications, it is often necessary to extract character information from videos or still pictures, which puts forward higher requirements in terms of technical implementation. [0003] The prior art provides a method for extracting video subtitles, which includes the following steps: (1) Carry out subtitle color judgment based on connected region statistics on the video subtitle area, confirm whether the subtitle color is dark or light, and reverse the light subtitle at the same time The grayscale picture is a dark subtitle picture; (2) the grayscale picture obtained in step (1) is binarized based on local window analysis; (3) OCR software is used to identify and extract the subtitle text result. [0004] The above prior art uses subtitle text color judgmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06K9/54
Inventor 刘立
Owner DAWNING INFORMATION IND BEIJING
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