chest radiography is a common diagnostic imaging test, which contains an enormous amount of information about a patient. however,its interpretation is highly challenging. the accuracy of the diagnostic process is greatly influenced by image processing algorithms;hence enhancement of the images is indispensable in order to improve visibility of the details. this paper aims at improving radiograp...

This paper presents a new automatic image enhancement method by modifying the gamma value of its individual pixels. Most of existing gamma correction methods apply a uniform gamma value across the image. Considering the fact that gamma variation for a single image is actually nonlinear, the proposed method locally estimates the gamma values in an image using support vector machine. First, a dat...

An optimized method for data hiding into a digital color image in spatial domainis provided. The graph coloring theory with different color numbers is applied. To enhance thesecurity of this method, block correlations method in an image is used. Experimental results showthat with the same PSNR, the capacity is improved by %8, and also security has increased in themethod compared with other meth...

Image segmentation is a fundamental approach in the field of image processing and based on user’s application .This paper propose an original and simple segmentation strategy based on the EM approach that resolves many informatics problems about hyperspectral images which are observed by airborne sensors. In a first step, to simplify the input color textured image into a color image without tex...

according to modern religious studies, religions are rooted in certain metaphorical representations, so they are metaphorical in nature. this article aims to show, first, how conceptual metaphors employ image schemas to make our language meaningful, and then to assert that image-schematic structure of religious expressions, by which religious metaphors conceptualize abstract meanings, is the ba...

abstractthe role of sexual – self schema and body imag on women sexual function introduction: the aime of the present study is to investigate the role of sexual self-schema and body image on sexual function of married female nurses....... method: statistical population of the present study consist of all married female nurses of tehran government hospitals. from which 200 individuals were selec...