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A Segmentation Method for Electrowetting Defective Pixels

A defect pixel and electrowetting technology, applied in image analysis, image enhancement, image data processing, etc., can solve problems such as low contrast, large contrast, and difficult segmentation, and achieve the effect of improving accuracy and reducing impact

Active Publication Date: 2021-08-31
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When filled with light-colored ink, the contrast between the defect and the background is greater and it is easier to segment
When filled with dark ink, the defect has low contrast with the background and segmentation is more difficult

Method used

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  • A Segmentation Method for Electrowetting Defective Pixels
  • A Segmentation Method for Electrowetting Defective Pixels
  • A Segmentation Method for Electrowetting Defective Pixels

Examples

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Please refer to figure 1 , the present invention provides a method for segmenting electrowetting defective pixels, comprising the following steps:

[0032] Step S1: collecting electrowetting pixel pictures;

[0033] Step S2: convert the electrowetting pixel image into a grayscale image after being enlarged by a microscope, and obtain a grayscale histogram;

[0034] Step S3: obtain optimal threshold t by automatic threshold method;

[0035] Step S4: Perform image binarization processing on the gray histogram based on the optimal threshold t to obtain the segmentation result.

[0036] In this example, image 3 is the basic structure of an electrowetting defect pixel, and the structure of an electrowetting pixel is as follows figure 2 As shown, it is a standard matrix arrangement structure, the background is filled ink, and the defect is a var...

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Abstract

The present invention relates to a method for segmenting electrowetting defective pixels, comprising the following steps: step S1: collecting electrowetting pixel images; step S2: converting the electrowetting pixel images into grayscale images after being enlarged by a microscope to obtain grayscale Histogram; Step S3: obtain optimum threshold t by automatic threshold method; Step S4: carry out image binarization process to grayscale histogram based on optimum threshold t, obtain segmentation result. The invention has a better segmentation result when the contrast between the electrowetting defect and the background is low.

Description

technical field [0001] The invention relates to the field of defect pixel segmentation, in particular to a method for segmenting electrowetting defect pixels. Background technique [0002] With the rapid development of the information industry, display technology has become an important channel for people to obtain information. In recent years, electrowetting, a new type of display technology, has begun to emerge. It is an electronic paper display, which has the advantages of fast response, low cost, and low energy loss. It is expected to lead the trend and become the next generation of mainstream displays. Electrowetting display technology is currently in a period of rapid development, and many institutions at home and abroad have conducted a lot of research on it. There may be defects in the production process of electrowetting devices, which affect the display effect, so the detection of defects is essential. Machine vision technology is a non-destructive defect detecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/136G06T7/00
CPCG06T7/0004G06T2207/10004G06T2207/10024G06T2207/30121G06T7/11G06T7/136
Inventor 林志贤廖钦楷林珊玲郭太良陈哲亮李甜甜张永爱周雄图
Owner FUZHOU UNIV