Paper Gloss Analysis by Specular Reflection Point Spread Function (Part II)
نویسندگان
چکیده
منابع مشابه
Simulating Gloss of Curved Paper by Using the Point Spread Function of Specular Reflection
We propose a method that uses the point spread function of specular reflection (SR-PSF) to simulate paper gloss. The SR-PSF is defined as the impulse response of specular reflection, which is the distribution of light intensity reflected from microscopic facets on the surface of the paper. In this study, we used a flat sample holder and measured the SR-PSFs of six paper samples, each of which h...
متن کاملSpecular Gloss
.........................................................................................................................................v
متن کاملLuminance-based specular gloss characterization.
Gloss is a feature of visual appearance that arises from the directionally selective reflection of light incident on a surface. Especially when a distinct reflected image is perceptible, the luminance distribution of the illumination scene above the sample can strongly influence the gloss perception. For this reason, industrial glossmeters do not provide a satisfactory gloss estimation of high-...
متن کاملLocal Analysis for 3D Reconstruction of Specular Surfaces - Part II
We analyze the problem of recovering the shape of a mirror surface. We generalize the results of [1], where the special case of planar and spherical mirror surfaces was considered, extending that analysis to any smooth surface. A calibrated scene composed of lines passing through a point is assumed. The lines are reflected by the mirror surface onto the image plane of a calibrated camera, where...
متن کاملNew Primary Standard for Specular Gloss Measurements
A new primary specular gloss standard has been developed at the National Institute of Standards and Technology to overcome the disadvantages of black glass. This new standard is a high-purity BaK50 glass with good mechanical durability and homogeneity. In addition, the index of refraction nD = 1.5677 is close to the value specified for the theoretical standard, and the dispersion characteristic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 2012
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.66.1425