Proceedings ArticleDOI
Adaptive local tone mapping based on retinex for high dynamic range images
Hyunchan Ahn,Byungjik Keum,Daehoon Kim,Hwang Soo Lee +3 more
- pp 153-156
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TLDR
A new tone mapping technique for high dynamic range images based on the retinex theory is presented, which provides satisfactory results while preserving details and reducing halo artifacts.Abstract:
In this paper, we present a new tone mapping technique for high dynamic range images based on the retinex theory. Our algorithm consists of two steps, global adaptation and local adaptation of the human visual system. In the local adaptation process, the Gaussian filter of the retinex algorithms is substituted with a guided filter to reduce halo artifacts. To guarantee good rendition and dynamic range compression, we propose a contrast enhancement factor based on the luminance values of the scene. In addition, an adaptive nonlinearity offset is introduced to deal with the strength of the logarithm function's nonlinearity. Experiments show that our algorithm provides satisfactory results while preserving details and reducing halo artifacts.read more
Citations
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A Probabilistic Method for Image Enhancement With Simultaneous Illumination and Reflectance Estimation
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Biologically inspired image enhancement based on Retinex
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Framelet regularization for uneven intensity correction of color images with illumination and reflectance estimation
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Retinex-based image enhancement framework by using region covariance filter
TL;DR: A Retinex-based image enhancement framework that can increase contrast, eliminate noise, and enhance details at the same time is proposed that has proved the improvement of the proposed framework in terms of both visual perception and quantitative comparisons with other compared methods.
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ADTrack: Target-Aware Dual Filter Learning for Real-Time Anti-Dark UAV Tracking
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References
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Proceedings ArticleDOI
Bilateral filtering for gray and color images
Carlo Tomasi,Roberto Manduchi +1 more
TL;DR: In contrast with filters that operate on the three bands of a color image separately, a bilateral filter can enforce the perceptual metric underlying the CIE-Lab color space, and smooth colors and preserve edges in a way that is tuned to human perception.
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Edwin H Land,John J. McCann +1 more
TL;DR: The mathematics of a lightness scheme that generates lightness numbers, the biologic correlate of reflectance, independent of the flux from objects is described.
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TL;DR: This paper extends a previously designed single-scale center/surround retinex to a multiscale version that achieves simultaneous dynamic range compression/color consistency/lightness rendition and defines a method of color restoration that corrects for this deficiency at the cost of a modest dilution in color consistency.
Book ChapterDOI
Guided image filtering
Kaiming He,Jian Sun,Xiaoou Tang +2 more
TL;DR: The guided filter is demonstrated that it is both effective and efficient in a great variety of computer vision and computer graphics applications including noise reduction, detail smoothing/enhancement, HDR compression, image matting/feathering, haze removal, and joint upsampling.
Journal ArticleDOI
Fast bilateral filtering for the display of high-dynamic-range images
DurandFrédo,DorseyJulie +1 more
TL;DR: A new technique for the display of high-dynamic-range images, which reduces the contrast while preserving detail, is presented, based on a two-scale decomposition of the image into a base layer.