The genetic and environmental variation for flesh color of tomato (Lycopersicon esculentum Mill.) fruit was quantified using 41 red-fruited breeding lines, open-pollinated cultivars, and hybrids that are representative of the diversity of tomatoes grown for whole-peel processing in the midwestern and eastern United States and Ontario, Canada. Objective color measurements were made for 2 years f...

This study aimed to evaluate barbatimão bark extracts as a feed additive and substitute for lasalocid sodium (LAS) feedlot lambs. Lambs were distributed into three treatments: LAS (0.018 g of sodium), DBB (1.500 dried milled bark), BHE (0.300 hydroalcoholic extract). There was no effect (p = 0.32) the inclusion on average daily gain. Inclusion in lamb diets reduced < 0.05) fatness score comp...

At present, lots of South Eastern countries are definitely going through a period of growth which is not only economic, but also cultural and social. Therefore, in the field of the cultural heritage restoration, it’s very important to develop means and technologies able to speed up the cataloguing and the knowledge of “heritage cities” and architectural goods, which are often unknown or abandon...

Hue plane preserving color correction (HPPCC), introduced by Andersen and Hardeberg [Proceedings of the 13th Color and Imaging Conference (CIC) (2005), pp. 141-146], maps device-dependent color values (RGB) to colorimetric color values (XYZ) using a set of linear transforms, realized by white point preserving 3×3 matrices, where each transform is learned and applied in a subregion of color spac...

We, in 1956 the Department of Architecture at the Budapest University of Technology and Economics, decided to start an extensive color harmony experiment. The experimental work, the collation, and processing of the collected data, lasting 50 years, was completed in 2006. The experiments described in this article are based on earlier experimental results obtained from investigation into the harm...

In this study, we used a hue scaling technique to examine human color constancy performance in simulated three-dimensional scenes. These scenes contained objects of various shapes and materials and a matte test patch at the center of the scene. Hue scaling settings were made for test patches under five different illuminations. Results show that subjects had nearly stable hue scalings for a give...

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...

The colorful representation of orientation preference maps in primary visual cortex has become iconic. However, the standard representation is misleading because it uses a color mapping to indicate orientations based on the HSV (hue, saturation, value) color space, for which important perceptual features such as brightness, and not just hue, vary among orientations. This means that some orienta...

The Abney effect refers to changes in the hue of lights as they are desaturated. Normally the purity is varied by desaturating with a fixed spectrum. Mizokami et al. [J. Vis.6, 996 (2006)] instead varied purity by using Gaussian spectra and increasing their bandwidth. Under these conditions the hues of lights at short and medium wavelengths tended to remain constant and thus were tied to a fixed ...

The perceived color of an object depends not only on the spectral composition of the light reflected from its surface, but also on the visual context such as illumination and surrounding colors. Such contextual modulations are thought to underlie perceptual phenomena such as color constancy. A possible neuronal basis may be lateral interactions that alter the activity of color selective neurons...