Xi'an Institute of Optics and Precision Mechanics,CAS
A novel automatic enhancement method for optical remotely sensed image | |
其他题名 | 一种基于直方图变换的光学遥感影像自动增强方法 |
Liu Xinyan1; Liu Jiahang2; Yan Junping1 | |
作者部门 | 遥感与智能信息系统研究中心 |
2016 | |
发表期刊 | Journal of Northwest University. Natural Science Edition |
ISSN | 1000-274X |
卷号 | 46期号:3页码:448-452 |
产权排序 | 2 |
摘要 | The image contrast and definition of remotely sensed image are the important factors of image quality. This paper presented a novel self-adaptive enhancement method for contrast and definition. Firstly,nonlinear transformation is operated on the histogram of an input image to reduce the distribution range of the image,and then linear stretch is used to expand the grey level to full permitted range. Experiments and comparison indicate that the presented method can improve the contrast and the definition with a little loss of information entropy and the enhanced results is rather fine than current main method of enhancement. Also,the presented method can be used to both panchromatic and colorful remotely sensed image. |
其他摘要 | 对比度、清晰度等视觉效果是影响图像质量的重要因素。针对光学遥感图像对比度和清晰度改善问题,提出了一种新的视觉效果自动增强模型。首先对输入图像的直方图采用非线性变换,在保持灰度级有效分布的前提下充分压缩灰度分布范围,从而获得优化的变换系数,然后再利用线性拉伸算法将图像灰度扩展至整个灰度域。实验和对比结果表明,所提出的增强模型在很小的信息熵损失条件下能较大幅度地提高图像的对比度和清晰度,获得比目前主要算法更好的增强结果且效果稳定,可适用于全色图像和彩色图像视觉效果的全自动化增强处理。 |
关键词 | Histogram Optimization Contrast Stretch Definition Enhancement Vision Effect Improvement Self-adaptive Enhancement |
收录类别 | CSCD |
语种 | 中文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/28344 |
专题 | 遥感与智能信息系统研究中心 |
作者单位 | 1.School of Tourism and Environmental Science,Shaanxi Normal University,Xi'an 710119,China 2.Laboratory of Remote Sensing and Intelligent Information System,Xi'an Institute of Optics and Precision Mechanics: Chinese Academy of Sciences,Xi'an 710119,China |
推荐引用方式 GB/T 7714 | Liu Xinyan,Liu Jiahang,Yan Junping. A novel automatic enhancement method for optical remotely sensed image[J]. Journal of Northwest University. Natural Science Edition,2016,46(3):448-452. |
APA | Liu Xinyan,Liu Jiahang,&Yan Junping.(2016).A novel automatic enhancement method for optical remotely sensed image.Journal of Northwest University. Natural Science Edition,46(3),448-452. |
MLA | Liu Xinyan,et al."A novel automatic enhancement method for optical remotely sensed image".Journal of Northwest University. Natural Science Edition 46.3(2016):448-452. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
一种基于直方图变换的光学遥感影像自动增强(502KB) | 期刊论文 | 作者接受稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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