Image Visual Enhancement Based on Layered Difference Representation

	Image Visual Enhancement Based on Layered Difference Representation
	Geng, A.; C. Wan; Y. Li; Y. Zhang; L. Cao and Q. Feng
	2017
发表期刊	Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
卷号	39 期号:4
摘要	Human vision pays more attention to the interesting region than other areas. A method based on salient region detection for layered difference representation of 2D histogram is proposed to achieve visual enhancement. The algorithm detects the salient region by salient filtering and cuts salient region with a threshold for visual perception firstly. Then, 2D histogram is calculated for related region in original image of salient region, and statistical information in different layers is converted to layer 2 according to the inner relationship of each layer. Following a difference vector is gained though solving a constrained optimization problem of layered difference representation at a specified layer. To preserve the character of non-salient region, an origin difference vector is defined. Finally, output image is reconstructed by a transformation function, which is the result of two difference vectors for salient region and non-salient region. Experimental results show that the proposed method enhances contrast and details in salient region efficiently while protecting non-salient region in origin image. The objective evaluation parameters in three group experiments illustrate that the proposed algorithm can get better scores in protecting global mean lighting in non-salient region, increasing PSNR and HSNR of the whole image compared to other five algorithms. The EME value of images enhanced by the proposed method is moderate. The objective evaluation parameters are consistent with the subject observation, and it demonstrates the proposed method can achieve visual enhancement effectively. 2017, Science Press. All right reserved.
收录类别	ei
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/58911
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Geng, A.,C. Wan,Y. Li,et al. Image Visual Enhancement Based on Layered Difference Representation[J]. Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology,2017,39(4).
APA	Geng, A.,C. Wan,Y. Li,Y. Zhang,&L. Cao and Q. Feng.(2017).Image Visual Enhancement Based on Layered Difference Representation.Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology,39(4).
MLA	Geng, A.,et al."Image Visual Enhancement Based on Layered Difference Representation".Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology 39.4(2017).

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