How to reduce noise with less speech distortion is a challenging issue for speech enhancement. We propose a novel approach for reducing noise with the cost of less speech distortion. A noise signal can generally be considered to consist of two components, a “white-like” component with a uniform energy distribution and a “color” component with a concentrated energy distribution in some frequency...

The results of K-band-imaging observations of a candidate of an absorbed QSO at z = 0.653, AX J131831+3341, are presented. The B − K color of the object is 4.85 mag, which is much redder than optically-selected QSOs. The K-band image shows nuclear and extended components, the same as in the optical V -, R-, and I-band images. The nuclear component (I −K = 4.29 mag) is much redder than the power...

Abstract The Ocean Color Component of the Aerosol Robotic Network (AERONET-OC) supports activities related to ocean color such as validation satellite data products, assessment atmospheric correction schemes, and evaluation bio-optical models through globally distributed standardized measurements water-leaving radiance aerosol optical depth. In view duly assisting AERONET-OC user community, thi...

We propose a method for skin translucency control of facial images. This is one of the important tasks in the reproduction of posters, TV commercials, movies, and so on. As the first step of processing, we extract the component maps of melanin, hemoglobin, and shading from skin color images by using our conventional method. The extracted shading component is controlled to change the translucenc...

An edge-colored graph is said to be swell-colored if each triangle contains exactly 1 or 3 colors but never 2 colors and if the graph contains more than one color. It is shown that a swell-colored complete graph with n vertices contains at least √ n + 1 colors. The complete graph with n 2 vertices has a swell coloring using n + 1 colors if and only if there exists a finite affine plane of order...

Reversible color component transforms derived by the LU factorization are briefly described. It is possible to obtain an reversible implementation to a given component transform, even if the original transform is irreversible. Some examples are presented and their performances are compared in image compression. key words: component transform, reversible transform, image compression, LU factoriz...