Characterization of Fabric Luster via Image Analysis.

Fabric luster is usually described visually (e.g. dull, bright, glittery, etc). Instrumental reflectance measurements have been applied to gauge luster, but these techniques only give overall reflectance values and do not adequately describe the luster. Image texture analysis, on the other hand, has been successfully applied to characterise luster. In the procedurc a fabric surface is photographed, the photonegative scanned on a digital microdensitometer, and the data processed in a computer. In the work described the images formed by light rellected from carpet surfaces accurately represent the carpet luster appearance. Quantitative and descriptive luster measurements show that people rate carpet luster mainly on the quantity and intensity of specular glitter points. [ABSTRACT FROM PUBLISHER]