Method and apparatus for detecting text in native electronic images

A technology of electronic images and images to be detected, applied in the field of image processing, can solve the problem of inaccurate detection of text areas, and achieve the effect of reducing the probability of being missed, reducing the probability of fusion, and improving accuracy

Active Publication Date: 2021-05-25
BEIJING YUNCE INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The embodiment of the present invention provides a text detection method and device to solve the problem that the text area detection is not accurate enough when the background color is similar to the text area color

Method used

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  • Method and apparatus for detecting text in native electronic images
  • Method and apparatus for detecting text in native electronic images
  • Method and apparatus for detecting text in native electronic images

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Embodiment Construction

[0031] 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 some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] figure 1 is a schematic flowchart of a method for detecting text in a native electronic image according to an embodiment of the present invention, figure 1 The shown method may be performed by an apparatus for detecting text in native electronic images, such as figure 1 The methods shown include:

[0033] S110. Determine M binarization thresholds based on the grayscale histogram of the image to be detected, where M is an integer greater than o...

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Abstract

The invention discloses a method and device for detecting text in an original electronic image. The method includes: determining M binarization thresholds based on the gray histogram of the image to be detected; Perform processing to obtain M binarized images; process the M binarized images to obtain M groups of text regions, and each group of text regions corresponds to a binarized image. In the method of the embodiment of the present invention, the image to be detected is processed by applying multiple binarization thresholds respectively to obtain multiple binarized images, and after obtaining multiple groups of text regions through multiple binarized images, based on the multiple groups of text regions Determine the target text area of ​​the image to be detected. Since there is mutual compensation between multiple groups of text areas, it can reduce the probability of fusion between the background and the text area due to the similar color of the background color and the text area, and reduce the probability of the text area being missed. Improve the accuracy of text area detection.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for detecting text in an original electronic image. Background technique [0002] Original electronic pictures are processed or synthesized by computer, not directly produced by cameras, such as advertising pictures, pictures on emails or web pages, etc. Usually, the text on these pictures is fair print, but the text is superimposed on a complex background. In order to distinguish the text from the complex background, the current mainstream method is to select an appropriate threshold and use it to process the image to obtain a black and white image, and then pass MSER (Maximally Stable Extremal Regions, maximum extreme stable region) and SWT (Stroke Width Transform, stroke width transformation) algorithm processes black and white pictures to determine the text area. However, in the case where the background color is similar to the color of the text...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/194G06T7/90G06T7/136G06T5/40G06K9/20
CPCG06T7/194G06T7/90G06T7/136G06T5/40G06V10/22
Inventor 蒋晓海谢春鸿
Owner BEIJING YUNCE INFORMATION TECH CO LTD
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