Genetic studies of pigmentation have benefited from spectrophotometric measures of light-dark hair color. Here we use one of those measures, absorbance at 650 nm, to look for chromosomal regions that harbor genes affecting hair pigmentation. At 7p15.1, marker D7S1808 was suggestive of linkage to light-dark hair color (LOD approximately 2.99). Marker D1S235 at 1q42.3 was suggestive of linkage to...

BACKGROUND Hair dryers are commonly used and can cause hair damage such as roughness, dryness and loss of hair color. It is important to understand the best way to dry hair without causing damage. OBJECTIVE The study assessed changes in the ultra-structure, morphology, moisture content, and color of hair after repeated shampooing and drying with a hair dryer at a range of temperatures. METH...

Application of Response Surface Methodology for Modeling the Color Strength of Natural Hair Colorant

The mechanisms that lead to variation in human skin and hair color are not fully understood. To better understand the molecular control of skin and hair color variation, we modulated the expression of Tyrosinase (Tyr), which controls the rate-limiting step of melanogenesis, by expressing a single-copy, tetracycline-inducible shRNA against Tyr in mice. Moderate depletion of TYR was sufficient to...

Prior research has shown that stereotypes regarding women's hair color have very real effects. The purpose of the present research was to examine the pervasiveness of stereotypes regarding women's competence and attractiveness in relation to hair color and GPA. Hair color, blond or brunette, and grade point average, high or low, was manipulated. Participants were asked to rate a female graduate...

This paper describes a new method to detect faces in color images based on the fuzzy theory. We make two fuzzy models to describe the skin color and hair color, respectively. In these models, we use a perceptually uniform color space to describe the color information to increase the accuracy and stableness. We use the two models to extract the skin color regions and the hair color regions, and ...

This paper describes a new method to detect faces in color images based on the fuzzy theory. We make two fuzzy models to describe the skin color and hair color respectively. In these models, we use a perceptually uniform color space to describe the color information to increase the accuracy and stableness. We use the two models to extract the skin color regions and the hair color regions, and t...

HAIR In the previous chapters a frame work for synthesis of photo-realistic hair images has been presented. In this chapter a discussion of the inverse problem will be made: Assuming that photographs of a hairstyle and the hair geometry are given, we are addressing the estimation of the BCSDF of the hair fibers. Such an image-based reconstruction can be valuable for many areas of application. F...