Results 241 to 250 of about 1,116,443 (297)
Some of the next articles are maybe not open access.

Color, Fastness, and Antimicrobial Properties of Wool Fabrics Dyed with Helichrysum Arenarium Subsp. Aucheri Extract

Journal of Natural Fibers, 2020
Natural dyestuffs are evaluated as innovative natural sources to color the fabric and give antibacterial properties in the textile industry. In this study, methanol extracts of Helichrysum arenarium subsp.
Mustafa Cuce   +4 more
semanticscholar   +1 more source

Fast implementation of color constancy algorithms

SPIE Proceedings, 2009
Color constancy is a feature of the human color perception system which ensures that the perceived color of objects remains relatively constant under varying illumination conditions, and therefore closer to the physical reflectance. This perceptual effect, discovered by Helmholtz, was formalized by Land and McCann in 1971, who formulated the Retinex
Jean-Michel Morel   +2 more
openaire   +1 more source

A fast parallel coloring of planar graphs with five colors

Information Processing Letters, 1987
Abstract We have shown that coloring a planar graph with five colors is in complexity class NC. The crux of the algorithm is our ability to find a large set of independent vertices and change the colors of their neighbors so that each independent vertex can color itself. This improves the result of [2] which colors a planar graph with eight colors. A
openaire   +2 more sources

cFAST: A fast color feature detector

2015 International Conference on Image Processing Theory, Tools and Applications (IPTA), 2015
By extending the basic idea of FAST it is possible to create a detector that can operate directly on a RGB color image and on it detect a higher number of features. The higher number of points and the simplification of the metric put us in the position to impose an additional condition on the keypoints.
C. Robert Pech, Jens Vial, Andreas Zell
openaire   +1 more source

Fast local color transfer via dominant colors mapping

ACM SIGGRAPH ASIA 2010 Sketches, 2010
Color transfer is an image editing technique which arises various applications, from daily photo appearance enhancement to movie post-processing. An ideal color transfer algorithm should keep the scene from the source image and apply the color style of the target image.
Weiming Dong   +3 more
openaire   +1 more source

Fast Algorithm for HDR Color Conversion

2016 Data Compression Conference (DCC), 2016
The paper addresses a problem of perceptual artifacts that appear in Y'CbCr non-linear luminance 4:2:0 HDR video. A computationally inexpensive method is proposed for converting the 4:4:4 HDR video to Y'CbCr 4:2:0 nonconstant luminance format. The method removes artifacts in areas with saturated colors.
openaire   +1 more source

Fast Color Change with Photochromic Fused Naphthopyrans

The Journal of Organic Chemistry, 2015
Photochromic molecules can reversibly develop color upon irradiation with UV light. These smart molecules, mainly in the naphthopyran family, have been applied with success to ophthalmic lenses that darken quickly under sunlight and revert to the uncolored state after several minutes in the dark.
Sousa, C.M.   +4 more
openaire   +3 more sources

Fast Trellis-Coded Color Quantization of Images

Real-Time Imaging, 2002
Summary: We examine color quantization of images using trellis-coded quantization (TCQ) in both the RGB domain and YUV domain. Together with a simple dithering scheme, an eight-bit trellis-coded color quantizer reproduces images that are visually indistinguishable from the 24-bit originals.
Samuel S. Cheng 0001   +2 more
openaire   +2 more sources

Fast reversible coding and indexing of colorations

Computing, 1976
Given a non-branched tree withn vertices. Then, by ann-g-coloration we understand a partition of the set of vertices into no more thang classes, such that adjacent vertices belong to different classes. Supposed the set\(\mathfrak{S}\) of alln-g-colorations (for givenn andg) is lexicographically ordered, here are given two algorithms: the first directly
openaire   +1 more source

Color Fastness Grading System for Textile Industry Using CIEL*a*b Color Space

2019 4th MEC International Conference on Big Data and Smart City (ICBDSC), 2019
This research paper focuses on the use of CIEL*a*b color space in determining the color fastness difference of a sample fabric and comparing it to the standard reference fabric’s desired color by calculating the delta E values.
Zeenat Zehra, M. Bashir
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy