Document image processing method and device

A document image and image technology, applied in the field of document image processing, can solve the problems of inability to meet the needs of RGB document image processing, unsuitable RGB document images, and poor RGB document image processing results, so as to meet the needs of image processing, The effect of improving the coloring effect, improving the image processing effect

Active Publication Date: 2020-03-31
ANHUI IFLYTEK INTELLIGENT SYST
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventor found through research that currently only one or two image processing methods are used for image processing of RGB document images, and traditional image denoising methods, image correction methods or image coloring methods are only for specific The image processing effect of the image is good, which is not suitable for RGB document images, resulting in poor image processing effects of RGB document images, which cannot meet the image processing requirements of RGB document images

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Document image processing method and device
  • Document image processing method and device
  • Document image processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0067] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0068] At this stage, for RGB document images, only one or two image processing methods are often used in image processing, and traditional image denoising methods, image correction methods or image coloring methods are only for image processing effects of specific images Preferably, it is not applicable to RGB document images, resulting in poor image processing ef...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a document image processing method and device, and the method comprises the steps: carrying out the image denoising processing of an RGB document image through a negative noisethree-channel color relation, and obtaining a denoised document image; based on the minimum bounding rectangle of each foreground connected region in the denoised document image, obtaining a target rotation direction and a target rotation angle by using a preset correction rule, and performing image correction on the denoised document image to obtain a corrected document image; and for the correction document image, performing image coloring processing and image trimming processing through background three-channel clustering in combination with the RGB document image to obtain a target document image. Visibly, the image processing effect of the RGB document image is improved from the aspects of image denoising, image correction, image coloring and image trimming, and the image processingrequirement of the RGB document image is met.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a method and device for document image processing. Background technique [0002] With the development of information technology, historical paper documents can be converted into electronic documents with the help of information technology, that is, historical paper documents are processed by cameras, video cameras or scanners to obtain RGB document images. Compared with historical Paper documents have the advantages of convenient delivery, easy extraction, and small footprint. [0003] Because historical paper documents are printed and used, there may be some phenomena such as partial smearing, blurred fonts, and more stains, resulting in some image noise in the processed RGB document images; and the angle of shooting or scanning during processing For other reasons, the RGB document image obtained through processing generally has the problem of image tilt,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/187
CPCG06T5/002G06T7/187G06T5/006G06T2207/10024Y02D10/00
Inventor 宋腾飞
Owner ANHUI IFLYTEK INTELLIGENT SYST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap