Results 261 to 270 of about 340,880 (298)

Chromatic Strength of Colors: Dominant Wavelength and Purity

Journal of the Optical Society of America, 1967
A new visual threshold lying between the colors that appear to contain gray and those that appear fluorescent has been determined as a function of dominant wavelength at high purity on a white (7000 K) background. The function is found to be an approximately constant multiple of the previously known purity threshold; it is independent of purity and ...
R M, Evans, B K, Swenholt
openaire   +2 more sources

Hydrophilic Modification of Multi-Walled Carbon Nanotube for Building Photonic Crystals with Enhanced Color Visibility and Mechanical Strength

Molecules, 2016
Low color visibility and poor mechanical strength of polystyrene (PS) photonic crystal films have been the main shortcomings for the potential applications in paints or displays.
Bingtao Tang, Jinghai Xiu, Shufen Zhang   +2 more
exaly   +2 more sources

Color image watermarking with adaptive strength of insertion

2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004
The paper presents a watermarking technique, specific to color images. The insertion and the detection are based on the 2D discrete wavelet transform, applied on each color component. Three color vectors are extracted from the wavelet coefficients. The insertion consists of modifying one vector for each location, with regard to the bit value and the ...
Alice Parisis, Philippe Carré, Christine Fernandez-Maloigne, Nathalie Laurent   +3 more
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Color Strength and Colorfastness of Flax Fabrics Dyed with Natural Colorants

Clothing and Textiles Research Journal, 2003
Flax fabrics were dyed with natural colorants extracted from animal and plant sources. The colorants used were cochineal, red sandalwood, madder root, and osage orange. The influence of the order of mordanting on color strength of dyed fabrics was analyzed. Colorfastness tests for washing, crocking, and perspiration were performed.
Ajoy K. Sarkar, Corinne M. Seal
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Chromatic Strengths of Colors, Part II The Munsell System

Journal of the Optical Society of America, 1968
An approximate model of the Munsell color space in terms of dominant wavelength and colorimetric purity is described. This approximation space describes the Value and Chroma relations as functions of chromaticity and the Chroma relations as a function of colorimetric purity, but does not describe the Hue spacing. A single curve describes (approximately)
R M, Evans, B K, Swenholt
openaire   +2 more sources

An In-Vitro Evaluation of Strength, Hardness, and Color Stability of Heat-Polymerized and 3D-Printed Denture Base Polymers After Aging

Polymers
This study evaluated the strength, hardness, and color stability of 3D-printed denture base resins and compared the outcome with conventional heat-cured denture base resins after aging by thermocycling.
Othman Y Alothman, Omar Alsadon, Durgesh Bangalore   +2 more
exaly   +2 more sources

Affect Aroused by Color, a Function of Stimulus Strength

Journal of Projective Techniques and Personality Assessment, 1966
Abstract The study investigated the effects of stimulus strength of color and degree of autism on the response to color, as it reflects an affective or cognitive process. Subjects were 30 male schizophrenics, 15 high autistic and 15 low autistic. Color was measured by selected cards from the HIT containing both high and low stimulus strength. Responses
openaire   +2 more sources

P‐33: Measuring Color Strength for Wide Color Gamut OLEDs

SID Symposium Digest of Technical Papers, 2022
With the release of high‐brightness and high‐chromatic OLED displays, color characteristics have become different from existing displays. The saturation of each pixel increases, and the luminance range widens, resulting in an H‐K effect that looks brighter than the actual luminance.
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Effect of coloring liquids on color of zirconia frameworks and bond strength of zirconia/veneering ceramic

The Journal of Prosthetic Dentistry, 2020
Zirconia substructures must be colored to fabricate esthetic restorations. However, the coloring procedure may affect the color match and bond strength of the veneering ceramic to the zirconia.The purpose of this in vitro study was to evaluate the bond strength of veneering ceramic to zirconia after dipping in coloring liquid for different durations ...
Selin, Celik, Yurdanur, Ucar, Orhun, Ekren   +2 more
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Mass Color and Tinting Strength

1972
The color, when viewed by reflected light, of a pigment-vehicle mixture of such thickness as to obscure completely the background is called the mass color (MC) of the pigment. Sometimes this is called mass-tone, over-tone, or self-color. MC encompasses lightness, hue, and saturation.
openaire   +1 more source