@article{kuehni_2016, title={How Many Object Colors Can We Distinguish?}, volume={41}, ISSN={["1520-6378"]}, DOI={10.1002/col.21980}, abstractNote={Abstract}, number={5}, journal={COLOR RESEARCH AND APPLICATION}, author={Kuehni, Rolf G.}, year={2016}, month={Oct}, pages={439–444} }
 @article{shamey_sawatwarakul_kuehni_2015, title={Cognitive Comparison of Unique and Intermediate Hues}, volume={40}, ISSN={["1520-6378"]}, DOI={10.1002/col.21875}, abstractNote={Abstract}, number={3}, journal={COLOR RESEARCH AND APPLICATION}, author={Shamey, Renzo and Sawatwarakul, Weethima and Kuehni, Rolf G.}, year={2015}, month={Jun}, pages={264–269} }
 @article{cao_castle_sawatwarakul_fairchild_kuehni_shamey_2014, title={Scaling perceived saturation}, volume={31}, ISSN={["1520-8532"]}, DOI={10.1364/josaa.31.001773}, abstractNote={Two psychophysical experiments were conducted at North Carolina State University (NCSU) and Rochester Institute of Technology (RIT) to obtain replicated perceived saturation data from color normal observers on the order of one unit of saturation. The same 37 Munsell sample sheets, including up to four references that had similar perceived saturation but different hue, were used in both experiments. Different assessment methods included presenting either four references simultaneously or only one reference at a time to observers and obtaining judged saturation magnitudes for the given Munsell samples. Four saturation models comprising Sab*, Suv*, CIECAM02, as well as Richter/Lübbe, were tested. CIECAM02 gave the best prediction of saturation for data obtained at NCSU while Sab* outperformed other models for the RIT data. For the combined dataset, Sab*, the Richter/Lübbe, and CIECAM02-based saturation models exhibited comparable performances. The Standardized Residual Sum of Squares index was used to measure the inter- and intra-observer variability and goodness of fit. Inter- and intra-observer variability of assessments was smaller than or comparable to those reported for the typical color difference evaluation experiments.}, number={8}, journal={JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION}, author={Cao, R. and Castle, M. and Sawatwarakul, W. and Fairchild, M. and Kuehni, R. and Shamey, R.}, year={2014}, month={Aug}, pages={1773–1781} }
 @misc{kuehni_2014, title={Unique Hues and Their Stimuli-State of the Art}, volume={39}, ISSN={["1520-6378"]}, DOI={10.1002/col.21793}, abstractNote={Abstract}, number={3}, journal={COLOR RESEARCH AND APPLICATION}, author={Kuehni, Rolf G.}, year={2014}, month={Jun}, pages={279–287} }
 @article{shamey_shepherd_abed_chargualaf_garner_dippel_weisner_kuehni_2011, title={How well are color components of samples of the Natural Color System estimated?}, volume={28}, ISSN={["1520-8532"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-80053594693&partnerID=MN8TOARS}, DOI={10.1364/josaa.28.001962}, abstractNote={The aim of this study was to determine how accurately color-normal subjects that have received basic information about, but do not have practical experience with, the Natural Color System (NCS) can estimate the Heringian components of a representative selection of samples. Twenty-five color-normal subjects, taking part in two trials with at least a 24 h gap between assessments, selected four samples representing individual unique hues (uHs) from a set of 40 highly chromatic NCS samples on a rotatable tray. The samples selected for assessment of components were displayed to the subjects who estimated the hue components of 16 high-chroma samples, hue and white/black components of 16 tonal color samples, and three achromatic samples with different blackness values. Variability in selection of samples representing uHs as well as the relationship between the subjects' estimates of unique hue components and the defined values of the system was obtained. It was found that hues alone are easier to correctly estimate than hues together with white and black and that the components of colors of higher chroma are easier to estimate accurately than those of lower chroma. It was also found that, for R and G, the mean uH choices of subjects differed very little from the NCS's R and G, whereas selections for yellow and blue deviated, the former by 1.22 hue steps (slightly greener than G90Y), and the latter by 1.36 hue steps (represented approximately by R85B). This may impact the accuracy of color models that employ NCS unique hues.}, number={10}, journal={JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION}, author={Shamey, Renzo and Shepherd, Sarah and Abed, Mira and Chargualaf, Michael and Garner, Nicholas and Dippel, Nicholas and Weisner, Nathan and Kuehni, Rolf G.}, year={2011}, month={Oct}, pages={1962–1969} }
 @article{kuehni_hardin_2010, title={Churchland's Metamers}, volume={61}, ISSN={["1464-3537"]}, DOI={10.1093/bjps/axp021}, abstractNote={Paul Churchland proposed a conceptual framework for translating reflectance profiles into a space he takes to be the color qualia space. It allows him to determine color metamers of spectral surface reflectances without reference to the characteristics of visual systems, claiming that the reflectance classes that it specifies correspond to visually determined metamers. We advance several objections to his method, show that a significant number of reflectance profiles are not placed into the space in agreement with the qualia solid, and produce two sets of counterexamples to his claim for metamers. 1. Introduction2. Preliminary Explanations and Objections 2.1. Color spaces and solids2.2. Visual metamers2.3. Matching and appearance2.4. Effect of light on appearance of objects3. Churchland's ‘Canonical Approximation’ Hypothesis4. Does the CA Cylinder House SSRs in Agreement with the Perceptual Color Solid?5. Two Sets of Metameric Counterexamples 5.1. Three metameric grays5.2. Three metameric yellows6. Birds, Bees, and Anthropocentrism Redux Introduction Preliminary Explanations and Objections 2.1. Color spaces and solids2.2. Visual metamers2.3. Matching and appearance2.4. Effect of light on appearance of objects Color spaces and solids Visual metamers Matching and appearance Effect of light on appearance of objects Churchland's ‘Canonical Approximation’ Hypothesis Does the CA Cylinder House SSRs in Agreement with the Perceptual Color Solid? Two Sets of Metameric Counterexamples 5.1. Three metameric grays5.2. Three metameric yellows Three metameric grays Three metameric yellows Birds, Bees, and Anthropocentrism Redux}, number={1}, journal={BRITISH JOURNAL FOR THE PHILOSOPHY OF SCIENCE}, author={Kuehni, Rolf G. and Hardin, C. L.}, year={2010}, month={Mar}, pages={81–92} }
 @article{shamey_sedito_kuehni_2010, title={Comparison of Unique Hue Stimuli Determined by Two Different Methods Using Munsell Color Chips}, volume={35}, ISSN={["1520-6378"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-78349293404&partnerID=MN8TOARS}, DOI={10.1002/col.20560}, abstractNote={Abstract}, number={6}, journal={COLOR RESEARCH AND APPLICATION}, author={Shamey, Renzo and Sedito, Michael G. and Kuehni, Rolf G.}, year={2010}, month={Dec}, pages={419–424} }
 @article{kuehni_shamey_mathews_keene_2010, title={Perceptual prominence of Hering's chromatic primaries}, volume={27}, ISSN={["1520-8532"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-76749144264&partnerID=MN8TOARS}, DOI={10.1364/josaa.27.000159}, abstractNote={Reported are results of an experiment involving perceptual assessment of very large color differences using samples representing approximate mean Hering opponent generic unique hues (guHs) based on subject selections, intermediate hues (iHs) using Munsell samples intermediate between guHs, and pairings of both guHs and iHs with a neutral gray. Sample pairs were assessed by 28 color normal subjects twice, with a gap of at least 24 hours between assessments. Results were calculated for individual subjects and the entire group. The hypothesis was that perceived chromatic differences of Hering's guHs are larger than those of iHs, and this was found to be statistically valid at the 99% confidence level based on a t-test. In addition, gray as a percept was found to have prominence comparable to that of generic unique hues.}, number={2}, journal={JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION}, author={Kuehni, Rolf G. and Shamey, Renzo and Mathews, Mara and Keene, Brandi}, year={2010}, month={Feb}, pages={159–165} }
 @article{kuehni_2008, title={Color difference formulas: An unsatisfactory state of affairs}, volume={33}, ISSN={["0361-2317"]}, DOI={10.1002/col.20419}, abstractNote={Abstract}, number={4}, journal={COLOR RESEARCH AND APPLICATION}, author={Kuehni, Rolf G.}, year={2008}, month={Aug}, pages={324–326} }
 @book{kuehni_schwarz_2008, title={Color ordered a survey of color order systems from antiquity to the present}, publisher={Oxford ;|aNew York: Oxford University Press}, author={Kuehni, Rolf G. and Schwarz, Andreas}, year={2008} }
 @article{kuehni_hinks_shamey_2008, title={Experimental Object Color Unique Hue Data for the Mean Observer for Color Appearance Modeling}, volume={33}, ISSN={["0361-2317"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-63349089809&partnerID=MN8TOARS}, DOI={10.1002/col.20449}, abstractNote={Abstract}, number={6}, journal={COLOR RESEARCH AND APPLICATION}, author={Kuehni, Rolf and Hinks, David and Shamey, Renzo}, year={2008}, month={Dec}, pages={505–506} }
 @article{kuehni_2007, title={Ludwig Pilgrim, a pioneer of colorimetry}, volume={32}, ISSN={["0361-2317"]}, DOI={10.1002/col.20288}, abstractNote={Abstract}, number={1}, journal={COLOR RESEARCH AND APPLICATION}, author={Kuehni, Rolf G.}, year={2007}, month={Feb}, pages={5–10} }
 @article{hinks_cardenas_kuehni_shamey_2007, title={Unique-hue stimulus selection using Munsell color chips}, volume={24}, ISSN={["1084-7529"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-36949037955&partnerID=MN8TOARS}, DOI={10.1364/JOSAA.24.003371}, abstractNote={Presented are intra- and inter-observer variability data comparing the unique-hue (UH) selections of sets of males and females, using two different visual experimental procedures incorporating Munsell color chips of varying hue but identical chroma and value. Although 34 of the 40 Munsell hue chips were selected by at least one observer as a UH, selections were generally repeatable. In addition, intra-observer variability represented approximately 15% of inter-observer variability. Also, when only three consecutive Munsell chips were viewed at a time, females showed significantly larger intra-observer variability than males, especially when making unique green selections. However, variability in UH selections was statistically insignificant between males and females when all Munsell chips were viewed simultaneously. No correlation was found between UH selections or intra-observer variability and hue ordering ability.}, number={10}, journal={JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION}, author={Hinks, David and Cardenas, Lina M. and Kuehni, Rolf G. and Shamey, Renzo}, year={2007}, month={Oct}, pages={3371–3378} }
 @article{kuehni_ramanath_2006, title={Sensing spectral stimuli: Sensor functions and number}, volume={31}, ISSN={["1520-6378"]}, DOI={10.1002/col.20171}, abstractNote={Abstract}, number={1}, journal={COLOR RESEARCH AND APPLICATION}, author={Kuehni, Rolf G. and Ramanath, Rajeev}, year={2006}, month={Feb}, pages={30–37} }
 @article{brown_kuehni_hinks_2006, title={The Villalobos Colour Atlas: An analysis}, volume={31}, ISSN={["1520-6378"]}, DOI={10.1002/col.20188}, abstractNote={Abstract}, number={2}, journal={COLOR RESEARCH AND APPLICATION}, author={Brown, M and Kuehni, RG and Hinks, D}, year={2006}, month={Apr}, pages={109–116} }
 @book{kuehni._2005, title={Color an introduction to practice and principles}, publisher={Hoboken: J Wiley & Sons}, author={Kuehni., Rolf G.}, year={2005} }
 @article{kuehni_2005, title={The  CMC(l: c) color difference formula and the values for the weights l and c}, volume={5}, number={11}, journal={AATCC Review}, author={Kuehni, R. G.}, year={2005}, pages={25–26} }
 @article{kuehni_2005, title={Visual color difference evaluation, mind the conditions}, volume={5}, number={9}, journal={AATCC Review}, author={Kuehni, R. G.}, year={2005}, pages={27–28} }
 @article{kuehni_ramanath_2004, title={Comparing observers}, volume={29}, ISSN={["1520-6378"]}, DOI={10.1002/col.20004}, abstractNote={Abstract}, number={3}, journal={COLOR RESEARCH AND APPLICATION}, author={Kuehni, RG and Ramanath, R}, year={2004}, month={Jun}, pages={183–186} }
 @article{ramanath_kuehni_snyder_hinks_2004, title={Spectral spaces and color spaces}, volume={29}, ISSN={["1520-6378"]}, DOI={10.1002/col.10211}, abstractNote={Abstract}, number={1}, journal={COLOR RESEARCH AND APPLICATION}, author={Ramanath, R and Kuehni, RG and Snyder, WE and Hinks, D}, year={2004}, month={Feb}, pages={29–37} }
 @book{kuehni_2003, title={Color space and its divisions: Color order from antiquity to the present}, ISBN={0471326704}, DOI={10.1063/1.1650231}, abstractNote={Color Space and Its Divisions: Color Order From Antiquity to the Present , Rolf G. Kuehni Wiley, Hoboken, N.J., 2003. $99.95 (408 pp.). ISBN 0-471-32670-4 Buy at Amazon}, publisher={Hoboken, NJ: J. Wiley}, author={Kuehni, R. G.}, year={2003} }
 @article{kuehni_2003, title={Colour difference formulas: accurate enough for objective colour quality control of textiles?}, volume={119}, DOI={10.1111/j.1478-4408.2003.tb00167.x}, abstractNote={The best formulas for predicting mean perceived small colour differences of industrially produced coloured goods have an average accuracy of about 65%. This should be considered unsatisfactory. Factors that influence accuracy are discussed in this paper and a proposal is made for determining if the accuracy can be significantly improved as a preliminary step toward developing more reliable data and a formula to predict it.}, number={3}, journal={Coloration Technology}, author={Kuehni, R. G.}, year={2003}, pages={164–169} }
 @article{kuehni_2002, title={A brief history of calico printing}, volume={2}, number={7}, journal={AATCC Review}, author={Kuehni, R. G.}, year={2002}, pages={7–11} }