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Method and device for extracting characters in image

An extraction method and extraction device technology, applied in the field of information processing, can solve problems such as poor flexibility, affecting user experience, cumbersome operation, etc., and achieve the effect of rapid and accurate extraction

Inactive Publication Date: 2014-06-11
BAIDU INT TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has problems such as cumbersome operation, high misselection rate (especially for small-screen mobile terminals), and poor flexibility, which seriously affects the user experience

Method used

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  • Method and device for extracting characters in image
  • Method and device for extracting characters in image
  • Method and device for extracting characters in image

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Embodiment Construction

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] See figure 1 , figure 1 It is a flow chart of a method for character extraction in an image according to the first embodiment of the present invention.

[0041] In step 101, a character image is obtained, and as figure 2 As shown, the character image includes a background and at least one character line distinct from the background. exist figure 2The illustrated character image includes three character lines "Ple and", "Google" and "F...

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Abstract

The invention discloses a method and device for extracting characters in an image. The method includes the first step of obtaining a character image, wherein the character image includes a background and at least one character row different from the background, and the character row comprises a plurality of characters which are arrayed in the row direction, the second step of obtaining first coordinates, the third step of setting a detection line extending in the row direction at the first coordinates and horizontally moving the detection line in the column direction to determine the column edge of the character row, the fourth step of segmenting out a row region including target character rows from the character image according to the column edge of the character row, the fifth step of determining the gap between row edges of the characters in the target character rows in the row direction, and the sixth step of segmenting the row region into a plurality of regions according to the gap between the row edges, wherein each region includes at least one character. Through the method, a user can conveniently, quickly and accurately extract the characters from the image.

Description

technical field [0001] The invention relates to the field of information processing, in particular to a method and device for character extraction in an image. Background technique [0002] With the rapid development and popularization of mobile terminals (smartphones, tablet computers, etc.), the demand for searching based on multimedia information is increasing. At present, based on different input contents, the above searches are mainly divided into: text search, voice search, image direct search and image optical recognition (OCR) search. Image OCR search is based on the limitations of the first three types of searches. By extracting character blocks in the image and converting them into text through OCR recognition, the search can be performed on web pages, software interfaces, videos, photography previews, and images that appear in photos. Searching by text does not require the user to type input, which brings great convenience to the user. [0003] However, how to q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46
Inventor 黄树东金远
Owner BAIDU INT TECH (SHENZHEN) CO LTD
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