Results 31 to 40 of about 1,094,287 (239)

A Novel Automatic White Balance Method for Color Constancy Under Different Color Temperatures

open access: yesIEEE Access, 2021
The spectrum distribution of the light source between scenes is usually uniform in all scenes lit by a given light source per the color constancy assumption.
Wei-Yen Hsu, Han-Chang Cheng
doaj   +1 more source

Very Deep Learning-Based Illumination Estimation Approach With Cascading Residual Network Architecture (CRNA)

open access: yesIEEE Access, 2021
For the imaging signal processing (ISP) pipeline of digital image devices, it is of high significance to remove undesirable illuminant effects and obtain color invariance, commonly known as ‘computational color constancy’.
Ho-Hyoung Choi, Byoung-Ju Yun
doaj   +1 more source

Color Constancy Adjustment Using Sub-Blocks of the Image

open access: yesIEEE Access, 2018
Extreme presence of the source light in digital images decreases the performance of many image processing algorithms, such as video analytics, object tracking, and image segmentation.
Md Akmol Hussain, Akbar Sheikh Akbari
doaj   +1 more source

Color Constancy Algorithm for Mixed-Illuminant Scene Images

open access: yesIEEE Access, 2018
The intrinsic properties of the ambient illuminant significantly alter the true colors of objects within an image. Most existing color constancy algorithms assume a uniformly lit scene across the image.
Md Akmol Hussain, Akbar Sheikh Akbari
doaj   +1 more source

Color constancy using color subspaces [PDF]

open access: yes, 2012
Photography, printing and computer vision are the areas where color constancy of images is essential. The human beings have learned to eliminate the effect that illumination has on the color appearance of objects, which is also the goal of color ...
Kreslin, Rok
core   +1 more source

Algorithm for foggy image enhancement based on the total variational Retinex and gradient domain

open access: yesTongxin xuebao, 2014
Considering the preservation of color constancy and the improvement of contrast ratio of foggy image en-hancement, the foggy image enhancement algorithm based on the total variational Retinex gradient domain method was proposed.
Bing-quan CHEN, Hong-li LIU
doaj   +2 more sources

The Constancy of Colored After-Images

open access: yesFrontiers in Human Neuroscience, 2017
We undertook psychophysical experiments to determine whether the color of the after-image produced by viewing a colored patch which is part of a complex multi-colored scene depends on the wavelength-energy composition of the light reflected from that ...
Semir Zeki   +3 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

open access: yesFEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg   +14 more
wiley   +1 more source

CVCC Model: Learning-Based Computer Vision Color Constancy with RiR-DSN Architecture

open access: yesSensors, 2023
To achieve computer vision color constancy (CVCC), it is vital but challenging to estimate scene illumination from a digital image, which distorts the true color of an object.
Ho-Hyoung Choi
doaj   +1 more source

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