Because of the advantages of finger-vein recognition systems such as live detection and usage as bio-cryptography systems, they can be used to authenticate individual people. However, images of finger-vein patterns are typically unclear because of light scattering by the skin, optical blurring, and motion blurring, which can degrade the performance of finger-vein recognition systems. In respons...

We present a method to automatically decompose a light field into its intrinsic shading and albedo components. Contrary to previous work targeted to 2D single images and videos, a light field is a 4D structure that captures non-integrated incoming radiance over a discrete angular domain. This higher dimensionality of the problem renders previous state-of-the-art algorithms impractical either du...

The lighting up of buildings is one form entertainment that makes a city more colorful, and photographers sometimes change this using photo-editing applications. This paper proposes method for automatically performing such changes follows the Retinex theory. theory indicates complex scenes caught by human visual system are affected surrounding colors, Retinex-based image processing uses these c...

The objective of the article is the comparative analysis of Likert rating scale based on the following range of response categories, i.e. 5, 7, 9 and 11 in context of the appropriate process of factors extraction in exploratory factor analysis (EFA). The problem addressed in the article is related primarily to the methodological aspects, both in selection of the optimal number of response categ...

Abstract An adaptive low-illumination image enhancement algorithm based on the weighted least squares optimization is proposed to solve difficulty of detailed feature recognition in images that collected by visible light imaging equipment. First, converted from RGB channel LAB channel. Second, we use an edge-preserving smoothing operator coarsen smooth base layer and extract multi-scale details...