Threshold segmentation method and system based on regional variance weight

A technology of threshold segmentation and regional variance, applied in the field of image processing, can solve the problems of low contrast, over-enhanced and under-enhanced images, and achieve the effect of improving richness, enhancing accuracy and stability

Pending Publication Date: 2022-07-12
FUZHOU UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, electrowetting electronic paper has problems such as ink reflow, oil film rupture, charge capture, and contact angle hysteresis. When electrowetting electronic paper displays images, image details and textures are not cl

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
  • Threshold segmentation method and system based on regional variance weight
  • Threshold segmentation method and system based on regional variance weight
  • Threshold segmentation method and system based on regional variance weight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0033] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, compone...

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 relates to a threshold segmentation method and system based on a region variance weight, and the method comprises the steps: obtaining a first threshold Th1 through employing an improved Otsu threshold segmentation algorithm, segmenting an image into a background region and a target region based on the first threshold Th1, and calculating the variance of the two segmented regions; solving a second threshold Th2 by using a maximum entropy threshold segmentation algorithm, segmenting the image into a background region and a target region based on the second threshold Th2, and calculating the variance of the two segmented regions; and then, a weight coefficient is introduced to balance the size of the proportion of the four variances, the size of two threshold values is adaptively adjusted through the weight coefficient, so that an accurate segmentation threshold value Th is obtained, and the image is segmented into a background region and a target region based on the segmentation threshold value Th. The method and the system are beneficial to accurately segmenting the image into the target area and the background area without losing image texture details.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a threshold segmentation method and system based on regional variance weights. Background technique [0002] Electrowetting display is a new type of reflective display that relies on ambient light display. It has the advantages of low power consumption, no radiation, fast response speed, and easy colorization. It has broad application prospects in the electronic paper industry. However, in practical applications, electrowetting electronic paper has problems such as ink reflow, oil film rupture, charge trapping, and contact angle hysteresis. Higher problems affect the display of electrowetting electronic paper. The commonly used method to improve image contrast is histogram equalization, but this method will cause the image to be over-enhanced and under-enhanced. In order to avoid the influence of high-probability grayscale on low-probability grayscale in th...

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
IPC IPC(8): G06T7/11G06T7/136G06T7/194
CPCG06T7/11G06T7/136G06T7/194
Inventor 林珊玲万俊霞林志贤林坚普张永爱周雄图叶芸郭太良
Owner FUZHOU UNIV
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