Gloss measurements are used to evaluate the quality and appearance of a product, especially in cases where esthetic appearance is of importance. Most commercial glossmeters are designed for measuring products of flat surface and therefore are not suitable for food products because of their uneven, curved surface. A new generation of commercial glossmeters is recently available for confined area...

To address the standardization issues of perceptually based image quality for printing systems, ISO/IEC JTC1/SC28, the standardization committee for office equipment chartered the W1.1 project with the responsibility of drafting a proposal for an international standard for the evaluation of printed image quality. One of the W1.1 task teams is chartered to address the issue of ”Gloss and Gloss U...

In this article, the authors reproduce gloss unevenness on a paper surface by expanding the Torrance–Sparrow model, which is based on the measurement and analysis of mesoscopic facets on paper. As the conventional Torrance–Sparrow model only considers macroscopic and microscopic facets, the authors expand the model to be able to consider mesoscopic facets. The normal vectors of mesoscopic facet...

Bidirectional reflectance distribution function provides a physical description of material appearance. In particular, it helps to describe the gloss. We suggest that, at least, one attribute of gloss: Contrast gloss (luster), may be described directly from an image by using local image contrast measurement. In this article, we investigate the relation between image contrast measures, gloss per...

The degree of floral gloss varies between species. However, little is known about this distinctive floral trait, even though it could be a key feature of floral biotic and abiotic interactions. One reason for the absence of knowledge is the lack of a simple, repeatable method of gloss measurement that can be used in the field to study floral gloss. A protocol is described for measuring gloss in...

The effect of mean gloss level on perceived whiteness was evaluated by magnitude estimation and pair wise comparison of papers with varying shades and gloss levels. The samples were printed on substrates of different gloss to target L*a*b* values measured under a light booth illumination having a 5000 K correlated colour temperature. Observers were able to rate the whiteness of the samples with...