Results 21 to 30 of about 2,007 (263)
Fast Fourier Color Constancy [PDF]
We present Fast Fourier Color Constancy (FFCC), a color constancy algorithm which solves illuminant estimation by reducing it to a spatial localization task on a torus. By operating in the frequency domain, FFCC produces lower error rates than the previous state-of-the-art by 13-20% while being 250-3000 times faster.
Jonathan T. Barron, Yun-Ta Tsai
openaire +2 more sources
ECOPRINT COLOR FASTNESS RESISTANCE ON GOATSKIN MEDIA AGAINST WET RUB AND SUNLIGHT
Many artisans prefer to use artificial (synthetic) dyes because they are faster and easier. However, chemical substances from synthetic dye waste are harmful to the environment.
Nurul Aini +2 more
doaj +1 more source
A fast algorithm for equitable coloring [PDF]
An equitable \(k\)-colouring of a graph is a proper vertex colouring with \(k\) colors, in which the sizes of any two colour classes differ by at most one. It was conjectured by P. Erdős and proved by \textit{A. Hajnal} and \textit{E. Szemerédi} [Combinat. Theory Appl., Colloquia Math. Soc.
Henry A. Kierstead +3 more
openaire +1 more source
Eco-Friendly Dyeing of Viscose Rayon Fabrics Using Anthocyanin from Hibiscus sabdariffa Linn
This paper investigates the feasibility of dyeing viscose rayon fabric with an anthocyanin solution extracted from H. sabdariffa L. calyces. For eco-friendly dyeing and improvement of the natural dye’s affinity to fabrics, natural mordants instead of ...
Fatemeh Shahmoradi Ghaheh +2 more
doaj +1 more source
Fast Edge Colorings with Fixed Number of Colors to Minimize Imbalance [PDF]
Summary: We study the following optimization problem: the input is a multigraph \(G = (V, E)\) and an integer parameter \(g\). A feasible solution consists of a (not necessarily proper) coloring of E with colors \(1, 2, \cdots, g\). Denote by \(d(v, i)\) the number of edges colored \(i\) incident to \(v\). The objective is to minimize \(\sum_{v \in V} \
Gruia Calinescu, Michael J. Pelsmajer
openaire +2 more sources
Coloring Fast Without Learning Your Neighbors' Colors
We give an improved randomized CONGEST algorithm for distance-$2$ coloring that uses $Δ^2+1$ colors and runs in $O(\log n)$ rounds, improving the recent $O(\log Δ\cdot \log n)$-round algorithm in [Halldórsson, Kuhn, Maus; PODC '20]. We then improve the time complexity to $O(\log Δ) + 2^{O(\sqrt{\log\log n})}$.
Halldórsson, Magnús M. +3 more
openaire +5 more sources
Although it has been used for centuries; silk’s appearance, touch, and other high-quality properties maintain the popularity of the fiber. However, there are different types of silkworms, so different types of silk fibers are available.
Memik Bunyamin Uzumcu +3 more
doaj +1 more source
Poly (2-methyl-1,3-propylene glycol-adipic acid) ester diol (PMA-1000), 2,2-dihydroxymethyl propionic acid (DMPA), toluene diisocyanate (TDI), 1,4-butanediol (BDO), 2,6-diaminoanthraquinone (DAAQ) were used as raw materials, triethylamine (TEA) as ...
Jia Zhao +4 more
doaj +1 more source
Variety and durability of color are presumed as key constrains of natural dyes. So, this study attempts to investigate the effect of metallic mordants on the color fastness properties of ecologically dyed cotton fabric using banana floral stem sap. Color
Md. Reazuddin Repon +2 more
doaj +1 more source
Involvement of silver and palladium with red peanuts skin extract for cotton functionalization
A systematic study is currently demonstrated approach for approving the superior role of silver and palladium metallic particles in acting the role of mordant with acquiring the dyed cotton fabrics excellence in color fastness with additional functions ...
Hossam E. Emam +3 more
doaj +1 more source

