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Method and device for locating text area in image

A text area and positioning image technology, applied in the field of image processing, can solve the problems of missing key information and low positioning accuracy

Inactive Publication Date: 2016-01-20
深圳深讯和科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the traditional technology, the method of locating the text area in the image is not accurate, and key information will be missed, making the positioning accuracy not high

Method used

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  • Method and device for locating text area in image
  • Method and device for locating text area in image
  • Method and device for locating text area in image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] In one embodiment, such as figure 1 As shown, a method for locating a text area in an image includes:

[0048] Step S102, acquiring an original image.

[0049] Original images can be obtained by taking pictures. For example, in one scenario, a mobile terminal may be used to take a photo of a business card to obtain a photo image obtained by taking the photo.

[0050] In step S104, the original image is converted by the Roberts operator to generate a grayscale image.

[0051] The Roberts operator is an operator that finds edges by local differences. In this embodiment, according to the formula:

[0052] A 1 = ( I ( i + 1 , j + 1 , R ...

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Abstract

The invention relates to a method for locating a text area in an image. The method for locating the text area in the image comprises a first step of obtaining an original image, a second step of transforming the original image and generating a grayscale image through a Roberts operator, a third step of carrying out binaryzation on the grayscale image and obtaining an edge image, and a fourth step of dilating the edge image and extracting location information of a connected domain of the edge image. In addition, a device which is used for locating the text area in the image is included. According to the method and the device for locating the text area in the image, accuracy of locating can be improved.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and device for locating character areas in an image. Background technique [0002] In business activities, users usually use business cards as a tool for identifying themselves. However, the paper business card in the traditional technology is inconvenient to carry and store, and the user usually needs to manually input the information on the paper business card into the smart terminal. [0003] In order to automatically recognize the information on the paper business card, the current business card management software usually needs to first locate the text area in the business card image obtained by taking pictures, and then convert the text area into text information through the OCR (Optical Character Recognition, Optical Character Recognition) system . [0004] However, in the traditional technology, the method for locating the text area in the image is inaccurate, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/20G06K9/54
Inventor 李冰陈小平肖方明汪利
Owner 深圳深讯和科技有限公司