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A 18.42 times faster video encoder based on Retinex theory
2012 Picture Coding Symposium, 2012Because of the limitation in the imaging system, videos captured by mobile devices are usually noisy. In this paper, a noise robust fast video encoding scheme is proposed based on Retinex theory. The reflectance image is estimated in a co-analysis module by Retinex theory, within which the content similarity is detected to conduct the encoding process.
Xin Jin 0002, Satoshi Goto
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Retinex at 50: color theory and spatial algorithms, a review
Journal of Electronic Imaging, 2017Retinex Imaging shares two distinct elements: first, a model of human color vision; second, a spatial-imaging algorithm for making better reproductions. Edwin Land’s 1964 Retinex Color Theory began as a model of human color vision of real complex scenes.
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Color Transfer and Retinex Theory Based Illumination Invariance
Information Computing and Automation, 2008The paper proposes a novel algorithm based on Retinex theory and color transfer to get illumination invariance among images, taking one of the images as a reference. Most of the algorithms focus on eliminating the illumination effect of one image, while our method corrects the variable illumination among images.
Jing Sun, Yandong Tang
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An Improved Image Enhancement Approach Based on Retinex Theory
2013 International Conference on Information Technology and Applications, 2013Using the reflectance component of images directly as the output of Retinex enhancement lacks adjustability and removing illuminance completely from the non-uniform image leads to the lack of coordination between gray scales and the visual effects is unsatisfactory.
Siqi Wu +3 more
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Smitty Stevens’ Test of Retinex Theory
1974This paper describes an experiment that Smitty performed while I was giving the William James lectures at Harvard. It was a modification of Craik’s and Cornsweet’s experiments using mixtures of red and blue instead of black and white. Smitty’s experiment tested whether the colors produced were the colors one would expect from the predictions of Retinex
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Border Noise Removal and Clean Up Based on Retinex Theory
2013Conversion from gray scale or color document image into binary image is the main step in most of Optical Character Recognition (OCR) systems and document analysis. After digitization, document images often suffer from poor contrast, noise, uniform lighting, and shadow.
Marian Wagdy +2 more
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Reflectance ratios: An extension of Land's retinex theory
1994Neighboring points on a smoothly curved surface have similar surface orientations and illumination conditions. Therefore, their brightness values can be used to compute the ratio of their reflectance coefficients. We develop an algorithm that estimates a reflectance ratio for each region in an image with respect to its background.
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Detections and Applications of Saliency on 3D Surfaces by Using Retinex Theory
2014Unlike traditional 2D images, which are projections of the real world onto a two-dimensional surface, 3D images express the geometry of the objects of interest directly in terms of a set of points, a mesh, or a surface composed of points with three-dimensional coordinates.
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Low illumination color image enhancement based on Gabor filtering and Retinex theory
Multimedia Tools and Applications, 2021Zhiwen Wang
exaly