Results 21 to 30 of about 1,383 (181)

DEANet: Decomposition Enhancement and Adjustment Network for Low-Light Image Enhancement

open access: yesTsinghua Science and Technology, 2023
Poor illumination greatly affects the quality of obtained images. In this paper, a novel convolutional neural network named DEANet is proposed on the basis of Retinex for low-light image enhancement.
Yonglong Jiang   +4 more
doaj   +1 more source

Northern Maize Leaf Blight Detection Under Complex Field Environment Based on Deep Learning

open access: yesIEEE Access, 2020
Northern maize leaf blight is one of the major diseases that endanger the health of maize. The complex background of the field and different light intensity make the detection of diseases more difficult.
Jun Sun   +3 more
doaj   +1 more source

Milano Retinex family [PDF]

open access: yesJournal of Electronic Imaging, 2017
Several different implementations of the Retinex model have been derived from the original Land and McCann’s paper. This paper aims at presenting the Milano-Retinex family, a collection of slightly different Retinex implementations, developed by the Department of Computer Science of Universita degli Studi di Milano. One important difference is in their
A. Rizzi, C. Bonanomi
openaire   +2 more sources

An Improved Algorithm for Low-Light Image Enhancement Based on RetinexNet

open access: yesApplied Sciences, 2022
Due to the influence of the environment and the limit of optical equipment, low-light images produce problems such as low brightness, high noise, low contrast, and color distortion, which have a great impact on their visual perception and the following ...
Hao Tang   +3 more
doaj   +1 more source

Lightness and Retinex Theory [PDF]

open access: yesJournal of the Optical Society of America, 1971
Sensations of color show a strong correlation with reflectance, even though the amount of visible light reaching the eye depends on the product of reflectance and illumination. The visual system must achieve this remarkable result by a scheme that does not measure flux. Such a scheme is described as the basis of retinex theory. This theory assumes that
E H, Land, J J, McCann
openaire   +2 more sources

Retinex-Based Relighting for Night Photography

open access: yesApplied Sciences, 2023
The lighting up of buildings is one form of entertainment that makes a city more colorful, and photographers sometimes change this lighting using photo-editing applications.
Sou Oishi, Norishige Fukushima
doaj   +1 more source

Retinex in Matlab

open access: yesColor and Imaging Conference, 2000
Many different descriptions of Retinex methods of lightness computation exist. We provide concise MATLAB™ implementations of two of the spatial techniques of making pixel comparisons. The code is presented, along with test results on several images and a discussion of the results.
Brian V. Funt   +2 more
openaire   +2 more sources

Retinex Low-Illumination Image Enhancement Algorithm Based on Light Image Estimation [PDF]

open access: yesJisuanji gongcheng, 2021
The images collected in low-illumination environment are limited in the contrast, and suffer from detail loss and noise interference.To address the problem, a Retinex-based method is proposed to improve illumination map estimation and realize low ...
HAN Mengyan, LI Liangrong, JIANG Kai
doaj   +1 more source

Retinex Poisson Equation: a Model for Color Perception

open access: yesImage Processing On Line, 2011
In 1964 Edwin H. Land formulated the Retinex theory, the first attempt to simulate and explain how the human visual system perceives color. Unfortunately, the Retinex Land-McCann original algorithm is both complex and not fully specified.
Nicola Limare   +3 more
doaj   +1 more source

Retinex Based Image Enhancement via General Dictionary Convolutional Sparse Coding

open access: yesApplied Sciences, 2020
Retinex theory represents the human visual system by showing the relative reflectance of an object under various illumination conditions. A feature of this human visual system is color constancy, and the Retinex theory is designed in consideration of ...
Jongsu Yoon, Yoonsik Choe
doaj   +1 more source

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