Results 21 to 30 of about 1,338 (116)

Retinex-Based Perceptual Contrast Enhancement in Images Using Luminance Adaptation

open access: yesIEEE Access, 2018
In this paper, we propose retinex-based perceptual contrast enhancement in images using luminance adaptation. Strong illumination causes the loss of local details in an image.
Qingtao Fu, Cheolkon Jung, Kaiqiang Xu
doaj   +1 more source

Improved Low-Light Image Feature Matching Algorithm Based on the SuperGlue Net Model

open access: yesRemote Sensing
The SuperGlue algorithm, which integrates deep learning theory with the SuperPoint feature extraction operator and addresses the matching problem using the classical Sinkhorn method, has significantly enhanced matching efficiency and become a prominent ...
Fengchao Li   +5 more
doaj   +1 more source

Recognition of road cracks based on multi-scale Retinex fused with wavelet transform

open access: yesArray, 2022
Cracks are the main diseases of roads and potential threats to road safety. The detection and repair of cracks is the focus of intelligent transportation system research.
Shenao Liu, Yonghua Han, Lu Xu
doaj   +1 more source

Visual simultaneous localization and mapping algorithm of coal mine underground considering image enhancement

open access: yesGong-kuang zidonghua, 2023
The visual simultaneous localization and mapping (SLAM) algorithm based on the feature point method has certain applications in coal mines. However, due to factors such as uneven lighting, variable lighting, and alternating light and dark areas, the ...
FENG Wei   +5 more
doaj   +1 more source

An End-to-End Underwater-Image-Enhancement Framework Based on Fractional Integral Retinex and Unsupervised Autoencoder

open access: yesFractal and Fractional, 2023
As an essential low-level computer vision task for remotely operated underwater robots and unmanned underwater vehicles to detect and understand the underwater environment, underwater image enhancement is facing challenges of light scattering, absorption,
Yang Yu, Chenfeng Qin
doaj   +1 more source

A coal mine underground image enhancement method based on multi-scale gradient domain guided image filtering

open access: yesGong-kuang zidonghua
There are serious issues with uneven lighting and noise interference in coal mine underground images. The existing Retinex based methods are directly applied to enhance coal mine underground images, which are prone to problems such as halo artifacts ...
MU Qi   +4 more
doaj   +1 more source

Multiscale Retinex

open access: yesImage Processing On Line, 2014
While the retinex theory aimed at explaining human color perception, its derivations have led to efficient algorithms enhancing local image contrast, thus permitting among other features, to "see in the shadows".
Ana BelĂ©n Petro   +2 more
doaj   +1 more source

Multispectral Demosaicking Using Bilinear Decomposition With Multichannel Structural Regularization

open access: yesIEEE Access
In this paper, a multispectral demosaicking algorithm that builds upon bilinear decomposition of a color image is proposed. The proposed algorithm can be summarized into three parts, where the first part constructs a graph-based measure that confines the
Sanghoon Kim, Jinook Lee, Moon Gi Kang
doaj   +1 more source

Toward Robust and Efficient Low-Light Image Enhancement: Progressive Attentive Retinex Architecture Search

open access: yesTsinghua Science and Technology, 2023
In recent years, learning-based low-light image enhancement methods have shown excellent performance, but the heuristic design adopted by most methods requires high engineering skills for developers, causing expensive inference costs that are unfriendly ...
Xiaoke Shang   +3 more
doaj   +1 more source

Low-light image enhancement based on improved Retinex-Net

open access: yesXi'an Gongcheng Daxue xuebao, 2022
In order to solve the problem of high noise and insufficient feature extraction of Retinex-Net in low-light image enhancement processing, this paper proposes a new network structure. First, the Retinex-Net network was used as the basic model to decompose
WANG Yannian   +3 more
doaj   +1 more source

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