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Image correction method, device and equipment

An image correction and image technology, applied in the field of image processing, can solve problems such as inability to correct image tilt, and achieve the effect of reducing the amount of data processing, improving the efficiency of image processing, and improving the accuracy

Pending Publication Date: 2020-12-18
CHINA CONSTRUCTION BANK
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Problems solved by technology

However, this method is mainly used to detect images containing straight lines. If the distorted image (for example, the image is distorted due to shooting angle, original wrinkle or equipment, etc.) does not contain straight lines, the image cannot be tilt-corrected.

Method used

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  • Image correction method, device and equipment
  • Image correction method, device and equipment
  • Image correction method, device and equipment

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described The embodiments are only some of the embodiments in this specification, not all of them. Based on one or more embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of the embodiments of this specification.

[0021] Hereinafter, a specific application scenario is taken as an example to describe the implementation of this specification. specific, figure 1 It is a schematic flowchart of an embodiment of an image correction method provided in this specification. Although this description provides the method operation steps or device stru...

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Abstract

The invention provides an image correction method, device and equipment. The method comprises the steps of obtaining a table image, wherein the character direction in the table image is different fromthe reference direction of a display interface, and the reference direction represents the positive direction of character recognition; performing Fourier transform on the table image to obtain a frequency spectrum image corresponding to the table image; carrying out straight line detection on the frequency spectrum image to obtain a straight line with the longest length in the frequency spectrumimage; calculating an included angle between the straight line and a reference direction of the display interface; and correcting the table image based on the included angle to obtain a corrected image. According to the embodiment of the invention, the inclined image without a straight line can be corrected, thereby providing a guarantee for subsequently improving the image recognition accuracy.

Description

technical field [0001] The present application relates to the field of image processing, in particular to an image correction method, device and equipment. Background technique [0002] With the development of Internet information technology, more and more organizations have begun to build information systems to realize paperless business processes. At present, in the process of paperless processing, most of the form document images need to be scanned or photographed, and a certain degree of inclination angle will be generated when scanning or photographing the form text image, and this inclination angle will have a certain impact on the subsequent automatic recognition. Therefore, image tilt correction before automatic recognition becomes more and more important. [0003] At present, image tilt correction mainly corrects tilted images by detecting straight lines in the image. However, this method is mainly for detection of images containing straight lines. If the distorte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/10G06T5/30
CPCG06T5/10G06T5/30G06T2207/20056G06T2207/20061G06T5/80
Inventor 程林鹏郑邦东熊博颖李靖柴忠芃
Owner CHINA CONSTRUCTION BANK
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