Generalization of color-difference formulas for any illuminant and any observer by assuming perfect color constancy in a color-vision model based on the OSA-UCS system

2011 ◽  
Vol 28 (11) ◽  
pp. 2226 ◽  
Author(s):  
Claudio Oleari ◽  
Manuel Melgosa ◽  
Rafael Huertas
Keyword(s):  
Color Vision ◽  
Color Constancy ◽  
Color Difference ◽  
Model Based

Preferred memory color difference between the deuteranomalous and normal color vision

2015 ◽  
Author(s):  
YeSeul Baek ◽  
Youngshin Kwak ◽  
Sungjoo Woo ◽  
Chongwook Park
Keyword(s):  
Color Vision ◽  
Color Difference ◽  
Normal Color Vision

The evolution of color vision

2001 ◽  
Vol 24 (4) ◽  
pp. 671-671
Author(s):  
Ian Gold
Keyword(s):  
Color Vision ◽  
Color Constancy ◽  
Ecological Niches ◽  
Chromatic Contrast ◽  
Naturally Occurring

It is argued that color constancy is only one of the benefits of color vision and probably not the most important one. Attention to a different benefit, chromatic contrast, suggests that the features of the environment that played a role in the evolution of color vision are properties of particular ecological niches rather than properties of naturally-occurring illumination. [Shepard]

A LCD Color Calibration Model Based on Gamut-Division Algorithm

2015 ◽  
Vol 731 ◽  
pp. 49-52
Author(s):  
Yin Zhang ◽  
Mao Hai Lin
Keyword(s):  
Liquid Crystal Display ◽  
Color Space ◽  
Color Difference ◽  
Calibration Method ◽  
Calibration Model ◽  
Division Algorithm ◽  
Model Based ◽  
Color Calibration ◽  
Soft Proofing ◽  
Color Rendering

The accuracy of color appearance of displayed image on a liquid crystal display (LCD) is the fundamental to guarantee good results in the soft proofing and cross-media color reproduction. Since the color rendering mechanism of LCDs is different from cathode-ray tube (CRT) displays, the traditional color calibration method cannot turn a very good result. In this paper, a LCD color calibration model based on gamut-division algorithm is proposed using spline method through the analysis of its color rendering mechanism. The monitor 3D gamut is firstly divided along the axis of L* in CIELAB color space according to the hue angle, and then an optimal color calibration matrix of the sub-gamut is computed with mathematical method. The experimental results show that the average color difference, the maximum color difference and hue shift are reduced compared with the traditional method.

Evaluation Accepted Small Color-Difference Samples by Using High Glossy Ink-Jet Paper

2011 ◽  
Vol 380 ◽  
pp. 179-182
Author(s):  
Jing Liang ◽  
Ning Fang Liao ◽  
Yu Sheng Lian ◽  
Yuan Yuan Wang
Keyword(s):  
Color Vision ◽  
Color Space ◽  
Visual Assessment ◽  
Color Difference ◽  
Normal Color Vision ◽  
Visual Color ◽  
Difference Formula ◽  
Ink Jet ◽  
Human Color Vision ◽  
High Range

In order to study the human color vision characteristics, the small color-difference discrimination threshold experiment at the 17 basic CIE color centers of high range of gloss color printed samples. A panel of 10 observers with normal color vision performed the visual assessment to 510 pairs of samples using admissibility method. The evaluation data of visual color-difference were obtained in CIELAB color space. The detailed comparision indicated that the data were used evaluate the four common color-difference formula, CIELAB, CIE94, CMC and CIEDE2000. The detailed analysis indicated that CIELAB recommended by CIE Performanced the best among the four modern color difference. For predicting very small color datas. The experimental data provides references for the improvement of uniform color space and color-difference formula.

The 11th J. A. F. Stevenson Memorial Lecture: Blobs and color vision

1983 ◽  
Vol 61 (12) ◽  
pp. 1433-1441 ◽  
Author(s):  
David H. Hubel ◽  
Margaret S. Livingstone
Keyword(s):  
Cytochrome Oxidase ◽  
Color Vision ◽  
Light Source ◽  
Striate Cortex ◽  
Ocular Dominance ◽  
Color Constancy ◽  
Orientation Selectivity ◽  
Memorial Lecture ◽  
Mitochondrial Enzyme ◽  
Spectral Content

When the monkey striate cortex is stained for the mitochondrial enzyme cytochrome oxidase a polka-dot pattern of patches or blobs is observed in layers 2 and 3 and more faintly in layers 5 and 6. In the macaque these blobs are aligned along the centers of ocular dominance columns. Cells within blobs lack the orientation selectivity and instead have the simpler concentric center-surround fields common in geniculate cells. Blob cells are specifically concerned with color and in particular with maintaining color constancy despite marked changes in the spectral content of the light source.

Research on Print-Through and the Prejudging Model Based on the Color Difference Evaluation

2011 ◽  
Vol 199-200 ◽  
pp. 1932-1935
Author(s):  
Yong Gang Yang ◽  
Qiao Zhuo Gao
Keyword(s):  
Color Difference ◽  
Model Based

In order to control the print-through, the value of print-through resistance (PTR for short) was put forward to predict the print-through of lithograph. For 5 given paper samples, the relationships between their PTR and print-through (expressed with ΔEab*) was explored under three sets of printing condition in this paper. The results showed that the PTR increase could lead to decrease of the print-through value. In particular, no matter what kind of conditions, the print-through value was almost smaller than 4NBS when the PTR of those paper samples was larger than 73%, which seems to be the absence of print-through phenomenon.

Sign in / Sign up

Export Citation Format

Share Document