Gloss Property of Radial Surface of Japanese Cypress (Chamaecyparis obtusa) : Relationship between Goniometrical Gloss Measurement and Image Analyses
نویسندگان
چکیده
منابع مشابه
Conjoint measurement of gloss and surface texture.
The image of a material's surface varies not only with viewing and illumination conditions, but also with the material's surface properties, including its 3-D texture and specularity. Previous studies on the visual perception of surface material have typically focused on single material properties, ignoring possible interactions. In this study, we used a conjoint-measurement design to determine...
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In the course of studies on biological active constituents from woody plants, we previously reported the isolation of many lignan derivatives as neurite outgrowth-promoting compounds from an ethyl acetate soluble fraction of Japanese Cypress (Chamaecyparis obtusa). Further chemical investigation on the residual parts of the ethyl acetate soluble fraction of a methanol extract of Japanese Cypres...
متن کاملNeurite outgrowth-promoting active constituents of the Japanese cypress (Chamaecyparis obtusa).
In the screening of biologically active constituents from woody plants, the methanol extract of leaves of Chamaecyparis obtusa showed potent neurite outgrowth-promoting activity in neuronal PC12 cells. The ethyl acetate-soluble fraction of the methanol extract showed potent activity and was separated by means of various chromatographic methods to give the two new compounds 1 and 2, as well as 1...
متن کاملImage statistics and the perception of surface gloss and lightness.
Despite previous data demonstrating the critical importance of 3D surface geometry in the perception of gloss and lightness, I. Motoyoshi, S. Nishida, L. Sharan, and E. H. Adelson (2007) recently proposed that a simple image statistic--histogram or sub-band skew--is computed by the visual system to infer the gloss and albedo of surfaces. One key source of evidence used to support this claim was...
متن کاملEffects of Image Dynamic Range on Apparent Surface Gloss
In this paper we present results from an experiment designed to investigate the effects of image dynamic range on apparent surface gloss. Using a high dynamic range display, we present high dynamic range (HDR) and standard dynamic range (tone mapped, SDR) renderings of glossy objects in pairs and ask subjects to choose the glossier object. We analyze the results of the experiments using Thursto...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 2011
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.60.282