Non-negative Matrix Factorization (NMF) is a part-based image representation method. It comes from the intuitive idea that entire face image can be constructed by combining several parts. In this paper, we propose a framework for face recognition by finding localized, part-based representations, denoted “Iterative weighted non-smooth non-negative matrix factorization” (IWNS-NMF). A new cost fun...

abstraction shigeo fokuada is one of the geniuses of contemporary graphic designers of japan. he was born in tokyo in 1932. after finishing his studies in national university of fine arts & music (1956), he worked in many fields of professional graphic design and his poster designs gained world reputation. he as a representative of avant-garde graphic design, with increasing international atten...

Wavelet transformation is one of the most practical mathematical transformations in the field of image processing, especially image and signal processing. Depending on the nature of the multiresolution analysis, Wavelet transformation become more accessible and powerful tools. In this paper, we refer to the mathematical foundations of this transformation.   Introduction: The...

Automatic image annotation is a process in which computer systems automatically assign the textual tags related with visual content to a query image. In most cases, inappropriate tags generated by the users as well as the images without any tags among the challenges available in this field have a negative effect on the query's result. In this paper, a new method is presented for automatic image...

800x600 background: pregnancy, due to hormonal changes and body reshaping, might disturb the pregnant women’s body image and self-esteem and also increase depression susceptibility. body dissatisfaction may result in some compensating attempts, such as weight loss, for improving body shape. these behaviors could result in serious outcomes for maternal and child health. the aim of the present st...