Method and device for detecting text in native electronic image

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 effects of reducing the probability of missed detection, improving accuracy, and reducing the probability of fusion

Active Publication Date: 2019-09-27
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

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  • Method and device for detecting text in native electronic image
  • Method and device for detecting text in native electronic image
  • Method and device for detecting text in native electronic image

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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 a text in a native electronic image, and the method comprises the steps of determining M binarization thresholds based on a gray histogram of a to-be-detected image; processing the to-be-detected image based on the M binarization thresholds to obtain M binarization images; and processing the M binary images to obtain M groups of text areas, wherein each group of text areas corresponds to one binary image. According to the method, by respectively applying the plurality of binarization thresholds to process the to-be-detected image, the plurality of binary images are obtained, and after the plurality of groups of text areas are obtained through the plurality of binarized images, the target text area of the to-be-detected image is determined based on the multiple text areas, and the mutual compensation exists among the multiple text areas, so that the probability that the background and the text areas are fused due to the fact that the background color is similar to the color of the text areas can be reduced, the probability that the text areas are missed is reduced, and the text area detection accuracy is improved.

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 Applications(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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