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Text image correction method and device and electronic equipment

A text image, binarization technology, applied in the field of image processing, can solve the problems of poor correction accuracy and effect, and achieve effective and precise correction effect

Active Publication Date: 2019-08-16
IOL WUHAN INFORMATION TECH CO LTD
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  • Application Information

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Problems solved by technology

However, in the case where there is no border in the text, the correction accuracy and effect of these correction methods will be poor

Method used

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  • Text image correction method and device and electronic equipment
  • Text image correction method and device and electronic equipment
  • Text image correction method and device and electronic equipment

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments in the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present invention.

[0023] The embodiment of the present invention aims at the problem in the prior art that the correction accuracy and effect of the existing correction method will be very poor when there is no border in the text, by using a box filter, the binarized text image is Fuzzy processing can effectively filter ou...

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Abstract

The embodiment of the invention provides a text image correction method and device and electronic equipment. The method comprises the following steps: carrying out binarization processing on a to-be-corrected text image, and carrying out fuzzification processing on the binarized text image by utilizing a box type filter so as to filter character gaps between adjacent characters in the same row inthe binarized text image and reserve row gaps between different rows; detecting and connecting line edges of each line of characters in the fuzzified text image by adopting a multi-level edge detection algorithm, and obtaining line segments formed by each line of characters in the fuzzified text image through statistical probability Hough transform based on the line edges; obtaining the maximum length of all the line segments, and calculating the inclination angle of the to-be-corrected text image by calculating the slope of the line segment; and based on the inclination angle, rotating the to-be-corrected text image to realize correction. According to the embodiment of the invention, the text image can be effectively and accurately corrected under the condition that the text does not havea frame.

Description

technical field [0001] The present invention relates to the technical field of image processing, and more specifically, to a text image correction method, device and electronic equipment. Background technique [0002] When using an image acquisition device to collect text images, often due to problems such as the placement angle of the device, the collected text images are inclined to varying degrees, which affects the display effect of the text. [0003] At present, in the technologies for solving the problem of displaying text images, image frame-based or projection-based tilt correction (Radon transform) methods are mostly used. However, in the case that there is no border in the text, the correction accuracy and effect of these correction methods will be poor. Contents of the invention [0004] In order to overcome the above problems or at least partly solve the above problems, embodiments of the present invention provide a text image correction method, device, and el...

Claims

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Application Information

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IPC IPC(8): G06T3/60G06T7/11G06T7/13G06T7/168G06T5/00
CPCG06T3/608G06T7/11G06T7/13G06T7/168G06T2207/20061G06T5/70
Inventor 蔡洁
Owner IOL WUHAN INFORMATION TECH CO LTD
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