Results 11 to 20 of about 1,749,429 (315)

Color Feature Based Dominant Color Extraction

open access: yesIEEE Access, 2022
The dominant colors in an image can be used for image search, color editing, palette generation, and several other applications. Conventionally, dominant colors are extracted using clustering or histogram-based methods.
Youngha Chang, Nobuhiko Mukai
doaj   +1 more source

Embedding color watermarks in color images [PDF]

open access: yes2001 IEEE Fourth Workshop on Multimedia Signal Processing (Cat. No.01TH8564), 2002
Robust watermarking with oblivious detection is essential to practical copyright protection of digital images. Effective exploitation of the characteristics of human visual perception to color stimuli helps to develop the watermarking scheme that fills the requirement.
Tung-Lin Wu, Chun-Hsien Chou
openaire   +4 more sources

Discoloration of teeth due to different intracanal medicaments [PDF]

open access: yesRestorative Dentistry & Endodontics, 2019
ObjectivesThe objective of this study was to assess coronal discoloration induced by the following intracanal medicaments: calcium hydroxide (CH), a mixture of CH paste and chlorhexidine gel (CH/CHX), and triple antibiotic paste (3Mix).Materials and ...
Farzaneh Afkhami   +4 more
doaj   +1 more source

Effect of glazing and polishing on opalescence and fluorescence of dental ceramics

open access: yesClinical and Experimental Dental Research, 2022
Objective Tooth enamel has opalescence and fluorescence, which should be mimicked by esthetic dental restorations. The purpose of this study was to compare the effects of glazing and polishing on the opalescence and fluorescence of dental ceramics ...
Sedighe Sadat Hashemikamangar   +4 more
doaj   +1 more source

Provably Secure and Fast Color Image Encryption Algorithm Based on S-Boxes and Hyperchaotic Map

open access: yesIEEE Access, 2022
The World Wide Web is experiencing a daily increase in data transmission because of developments in multimedia technologies. Consequently, each user should prioritize preventing illegal access of this data by encrypting it before moving it over the ...
Zaid Ameen Abduljabbar   +7 more
doaj   +1 more source

Colorful Image Colorization [PDF]

open access: yes, 2016
Given a grayscale photograph as input, this paper attacks the problem of hallucinating a plausible color version of the photograph. This problem is clearly underconstrained, so previous approaches have either relied on significant user interaction or resulted in desaturated colorizations.
Phillip Isola   +2 more
openaire   +3 more sources

Use of Multispectral Microscopy in the Prediction of Coated Halftone Reflectance

open access: yesJournal of Imaging, 2022
When a print is coated with a transparent layer, such as a lamination film or a varnish layer, its color can be modified compared to the uncoated version due to multiple reflections between the layer-air interface and the inked substrate.
Fanny Dailliez   +4 more
doaj   +1 more source

Probabilistic Image Colorization [PDF]

open access: yesProcedings of the British Machine Vision Conference 2017, 2017
We develop a probabilistic technique for colorizing grayscale natural images. In light of the intrinsic uncertainty of this task, the proposed probabilistic framework has numerous desirable properties. In particular, our model is able to produce multiple plausible and vivid colorizations for a given grayscale image and is one of the first colorization ...
Alexander Kolesnikov   +2 more
openaire   +3 more sources

Deep Color Transfer for Color-Plus-Mono Dual Cameras

open access: yesSensors, 2020
A few approaches have studied image fusion using color-plus-mono dual cameras to improve the image quality in low-light shooting. Among them, the color transfer approach, which transfers the color information of a color image to a mono image, is ...
Hae Woong Jang, Yong Ju Jung
doaj   +1 more source

The alternating least squares technique for nonuniform intensity color correction [PDF]

open access: yes, 2014
Color correction involves mapping device RGBs to display counterparts or to corresponding XYZs. A popular methodology is to take an image of a color chart and then solve for the best 3 × 3 matrix that maps the RGBs to the corresponding known XYZs ...
Finlayson, Graham D.   +2 more
core   +1 more source

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