基于Gabor滤波器的电泳电子纸图像滤波系统设计

何文耀; 刘林威; 黄圳煜; 易子川; 周国富; 水玲玲

doi:10.6054/j.jscnun.2020021

基于Gabor滤波器的电泳电子纸图像滤波系统设计

doi: 10.6054/j.jscnun.2020021

1.
华南师范大学华南先进光电子研究院，广州 510006
2.
电子科技大学中山学院电子信息学院，中山 5284021

基金项目:

国家重点研发计划项目 2018YFB0407100-02

国家重点研发计划项目 2016YFB0401502

广东省科技计划项目 2014A010103024

广东省教育厅项目 2018KQNCX334

中山市引进创新创业科研团队项目 180809162197886

详细信息

通讯作者:
水玲玲，教授，Email:shuill@m.scnu.edu.cn

中图分类号: TN911.73
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- PDF下载量: 20
- 被引次数: 0
出版历程
- 收稿日期: 2019-08-27
- 刊出日期: 2020-04-25

The Design of Electronic Paper Image Filtering Based on Gabor Filters

1.
South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
2.
Zhongshan Institute, University of Electronic Science and Technology of China, Zhongshan 528402, China

摘要

摘要: 采集电泳电子纸(EPD)的边缘纹理、鬼影图像时，需避免外界光照条件的干扰，包括光源方向、明暗和色彩等.针对EPD显示画面采集过程中受到的光干扰问题，设计了一种基于Gabor滤波器的图像滤波系统.对于受光干扰的单一灰阶图像，先通过Gabor滤波器降低光照变化和噪声对图像的影响，再通过闭运算进行边缘补偿；对于受光干扰的彩色图像，先提取图像的R、G、B分量，分别对各分量进行Gabor滤波，最后将3组分量重新组合成彩色图像.结果表明：该系统在单一灰阶图像、彩色图像中对光干扰的消除率分别达到39.9%和39.7%.研究结果对降低采集EPD图像时的光干扰具有重要意义.
- 电泳电子纸 /
- Gabor滤波器 /
- 光干扰 /
- 彩色图像滤波 /
- 单一灰阶图像滤波
Abstract: The collection of the edge textures and the ghost image in electrophoretic display (EPD) requires avoiding the interference of outside light conditions, including the direction of the light source, lighting and shade, color and so on. A image filtering method based on Gabor filters is proposed to reduce the lighting interference in the process of collecting EPD images. For a single gray-scale image which is interfered by the lighting, the Gabor filters are used to reduce the influence of illumination variation and noise in the image, and then the edge compensation is performed by the closed operation. For the color image subjected to light interference, the R, G and B components of the image are extracted first. The components are then subjected to filtering with the Gabor filters, and finally the three components are recombined into the color image. The experimental results show that the elimination rate of light interference in single gray-scale image and color image is 39.9% and 39.7% respectively. The results of this study are of great significance in reducing the light interference introduced in EPD image collection.
- electrophoretic display /
- Gabor filters /
- lighting interference /
- color image filtering /
- single gray-scale image filtering

HTML全文

图 1 硬件系统工作流程

Figure 1. The hardware system workflow

下载: 全尺寸图片幻灯片

图 2 系统硬件框架与软件流程

Figure 2. The system hardware framework and the software workflow

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图 3 Gabor滤波前后的图像对比

Figure 3. The image comparison before and after Gabor filtering

下载: 全尺寸图片幻灯片

图 4 Gabor滤波和闭运算得到的三维模拟图

Figure 4. The 3-dimensional simulation curves obtained with Gabor filtering and closed operation

下载: 全尺寸图片幻灯片

图 5 本文方法与其他方法的滤波效果对比

Figure 5. The filtering effect with the current method in compa-rison with that with other methods

下载: 全尺寸图片幻灯片

图 6 本文方法与其他方法的滤波效果对比

Figure 6. The filtering effect with the current method in comparison with that with other methods

下载: 全尺寸图片幻灯片

表 1 图像灰度值的方差比较

Table 1. The comparison of image gray scale variance

图像处理	单一灰阶图像		彩色图像
图像处理	灰度方差	方差下降率/%	灰度方差	方差下降率/%
滤波前	80.2	-	3 000	-
本文Gabor滤波	48.2	39.9	1 810	39.7
灰度化	128.9	-60.7	-	-
高斯低通滤波^[8]	79.9	0.4	2 886	0.4

下载: 导出CSV

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