Results 11 to 20 of about 3,132,586 (280)

Single-Image Dehazing Using Extreme Reflectance Channel Prior

open access: yesIEEE Access, 2021
Image dehazing algorithms based on dark channel prior principle have achieved good results for most scenes. However, the popular dark channel prior tends to underestimate transmissions of bright areas or objects, such as the skies, white areas and self ...
Yutong Zhang   +6 more
doaj   +1 more source

A Dark and Bright Channel Prior Guided Deep Network for Retinal Image Quality Assessment [PDF]

open access: yesBiocybernetics and Biomedical Engineering, 2021
Retinal image quality assessment is an essential task in the diagnosis of retinal diseases. Recently, there are emerging deep models to grade quality of retinal images. Current state-of-the-arts either directly transfer classification networks originally designed for natural images to quality classification of retinal images or introduce extra image ...
Ziwen Xu, Beiji Zou 0001, Qing Liu 0003
openaire   +3 more sources

Image Haze Removal Algorithm Using a Logarithmic Guide Filtering and Multi-Channel Prior

open access: yesIEEE Access, 2021
In reality, the quality of an image is generally affected by haze. To obtain a well-quality image, removing haze is a hot issue on theory and application. This paper proposes a new algorithm to remove haze of hazy images.
Yuanyang Zou   +3 more
doaj   +1 more source

An Adaptive Combination of Dark and Bright Channel Priors for Single Image Dehazing [PDF]

open access: yesJournal of Imaging Science and Technology, 2017
Dehazing methods based on prior assumptions derived from statistical image properties fail when these properties do not hold. This is most likely to happen when the scene contains large bright areas, such as snow and sky, due to the ambiguity between the airlight and the depth information.
Whannou de Dravo, Vincent   +4 more
openaire   +2 more sources

Blind Image Deblurring via a Novel Sparse Channel Prior

open access: yesMathematics, 2022
Blind image deblurring (BID) is a long-standing challenging problem in low-level image processing. To achieve visually pleasing results, it is of utmost importance to select good image priors. In this work, we develop the ratio of the dark channel prior (
Dayi Yang, Xiaojun Wu, Hefeng Yin
doaj   +1 more source

Restoration and Enhancement of Underwater Images Based on Bright Channel Prior [PDF]

open access: yesMathematical Problems in Engineering, 2016
This paper proposed a new method of underwater images restoration and enhancement which was inspired by the dark channel prior in image dehazing field. Firstly, we proposed the bright channel prior of underwater environment. By estimating and rectifying the bright channel image, estimating the atmospheric light, and estimating and refining the ...
Yakun Gao, Haibin Li, Shuhuan Wen
openaire   +1 more source

An improved algorithm using weighted guided coefficient and union self‐adaptive image enhancement for single image haze removal

open access: yesIET Image Processing, 2021
The visibility of outdoor images is usually significantly degraded by haze. Existing dehazing algorithms, such as dark channel prior (DCP) and colour attenuation prior (CAP), have made great progress and are highly effective.
Guangbin Zhou   +5 more
doaj   +1 more source

Efficient Single Image Dehazing Model Using Metaheuristics-Based Brightness Channel Prior [PDF]

open access: yesMathematical Problems in Engineering, 2021
Haze degrades the spatial and spectral information of outdoor images. It may reduce the performance of the existing imaging models. Therefore, various visibility restoration models approaches have been designed to restore haze from still images. But restoring the haze is an open area of research.
Vinay Kehar   +3 more
openaire   +2 more sources

Defogging algorithm of underground coal mine image based on adaptive dual-channel prior

open access: yesGong-kuang zidonghua, 2022
When dark channel prior algorithm is used to deal with underground coal mine images, there are problems of image distortion, lack of details and dark light.
WANG Yuanbin   +3 more
doaj   +1 more source

Patch-Wise Blind Image Deblurring Via Michelson Channel Prior

open access: yesIEEE Access, 2019
Motion blur exists in many computer vision tasks, including faces, texts, and low-illumination images etc. It has been proved that Dark Channel Prior (DCP) and Bright Channel Prior (BCP) can both help the image deblurring by enhancing the dark or bright ...
Guoquan Wen   +4 more
doaj   +1 more source

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