Metallic coatings change in appearance as the viewing and illumination direction change. Matching of such finishes requires a match of color as viewed under different lighting and viewing conditions, as well as texture, i.e. matching the spatial distribution of color. The system described in this paper provides a purely objective and automatic match measure for evaluating the goodness of a colo...

There is often interest in identifying geometry in a scene. Edge detection is an established method of looking at scene geometry, but naive edge detection in a complex scene discerns little about the physical geometry; light and shadowing effects especially in outdoor scenes can cause edge detectors to mistakenly classify texture and shadow edges as geometry edges. However, with a sample of sev...

Stylometry in visual art—the mathematical description of artists’ styles—has been based on a number of properties of works, such as color, brush stroke shape, visual texture, and measures of contours’ curvatures. We introduce the concept of quantitative measures of lighting, such as statistical descriptions of spatial coherence, diffuseness, and so forth, as properties of artistic style. Some a...

results the results show the artificial lighting obtained by difference methods of the overall lighting from natural lighting in closed blinds mode equal to 266 lux and night lighting 283.5 lux that they have no significant differences with each other (p = 0.269). as well as the illumination intensity obtained from a standard grid method is 283.5 lux and illumination intensity based on luminair...

The paper presents an approach to the acquisition of texture models of specific objects under the following assumptions: (I) the system has to recognize objects on a sequence of images. (2) images of a sequence demonstrate the variability of conditions under which objects are perceived (e.g., resolution. lighting, surface positioning), (3) an observer or objects can move, (4) the extraction of ...

In this thesis, we present a texture synthesis method for realistic rendering without acquiring the actual reflectance properties. The method is from the observation that most objects have texture repeatedly laid on different locations of their surface explicitly or implicitly. These samples form a pretty sparse set of BTFs. Our goal is to extract the underlying texture from photographs of the ...

Given an uncontrolled image dataset, there are several approaches to reconstruct the geometry of the scene and very few for reconstructing the texture. We analyze two different state of the art fully integrated texture reconstruction frameworks to generate a textured scene. Shan et al.’s approach [1] uses a shading model inspired by Computer Graphics rendering to formulate the scene and compute...