Method and device for segmenting text image

A text image and text line technology, applied in the field of image processing, can solve problems such as distortion, text line skew, and inability to obtain line segmentation results

Inactive Publication Date: 2016-11-23
HUNAN UNIV
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Problems solved by technology

However, in practical applications, scanning text images may cause the text lines in the image to be skewed and distorted due to some external rea

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  • Method and device for segmenting text image
  • Method and device for segmenting text image
  • Method and device for segmenting text image

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0021] It should be noted that like numerals and let...

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Abstract

An embodiment of the invention provides a method and a device for segmenting a text image and belongs to the field image processing. The method includes: binarizing the text image to acquire a binarized image, wherein the text image includes multiple text lines; acquiring a communication area, meeting preset threshold conditions, in the binarized image; acquiring character nodes of the communication area to build a digraph; performing shortest path search on the digraph to acquire a character node sequence, belong to each text line, in the text image; segmenting the text image according to the acquired character node sequence. Compared with existing text line segmenting methods, the method and the device have the advantage that accuracy in line segmenting of text images having inclined and distorted text lines is improved effectively.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to a text image segmentation method and device. Background technique [0002] Before text segmentation and character recognition are performed on the scanned text image, each text line in the text image needs to be segmented. The existing text line segmentation method is to find the peaks and valleys of the projected image by horizontally projecting the binary image of the original text image. This type of algorithm requires that the text lines have no inclination and no overlapping parts between lines. However, in practical applications, the scanned text image may cause the text lines in the image to be skewed or distorted due to some external reasons. Therefore, when there are skewed and distorted text lines in the scanned text image, more accurate line segmentation results cannot be obtained. Contents of the invention [0003] In view of this, the object of the present...

Claims

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Application Information

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IPC IPC(8): G06K9/34G06K9/38G06K9/46
CPCG06V10/28G06V10/267G06V10/44
Inventor 李树涛钟巧孙斌
Owner HUNAN UNIV
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