the siyah bisheh area is located in central part of alborz zone, 40km south of amol, iran. rock units exposing in the area consists of sedimentary (carbonates, sandstone, siltstone), volcano- sedimentary (andesite to andesitic tuff, tuff), ignimbrite and basalt. when erosion and tectonics have rendered volcanic structures undetectable, remote sensing provides an invaluable tool for their ide...

since long time ago, mobile metaphor and simile are most important mean for poetic images creation. the present paper studies bayati works according to the important role of the colors in poetic images creation in. we came to conclusion that the poet has used the colors in order to express his feelings, his unsatisfactory as well goals, aims and ideologies. the colors application or secret sema...

Plastic deformation behavior of Cu/Ni/W metallic multilayers with individual layer thickness ranging from 5 nm to 300 nm is investigated by nanoindentation testing. The experimental results reveal that the composite still exhibits indentation-induced plastic deformation instability and the loss of strain hardening ability at the nanometer scale even if the composite contains two kinds of layer ...

This paper presents an algorithm for detecting nudity in color images. A skin color distribution model based on the RGB, Normalized RGB, and HSV color spaces is constructed using correlation and linear regression. The skin color model is used to identify and locate skin regions in an image. These regions are analyzed for clues indicating nudity or nonnudity such as their sizes and relative dist...

UAbstract . There is a gradual increase in the number of composite pictures containing people. Due to the existence of such compositions, the trust in photographs is reduced. Due to the invention of powerful digital image editing tools, it has been so easy to manipulate images. Approaches that consider the illumination inconsistencies in digital images are of particular interest because a perfe...

The ultimate goal of realistic image synthesis is to generate computer imagery that is perceptually indistinguishable from its real-world counterpart. Many rendering techniques have been proposed, making tremendous progress to reach this goal. Now we are faced with two basic questions. How far we are from the goal? How well the existing techniques perform? No doubt a quantitative definition or ...

objective: to study the in vitro color changes of three dental resin veneering materials when immersed in tea, coffee and tamarind extracts. materials and methods: the color changes of heat polymerized tooth colored acrylic resin (stellondetrey, b, f14, dpi dental products of india ltd, mumbai), auto polymerized tooth colored acrylic resin (dpi, b, qv5, dpi dental products of india ltd, mumbai)...

İleri teknoloji potansiyeli yüksek ülkelerin bu hedeflerini gerçekleştirmesi doğrultusunda birçok uluslararası organizasyon tarafından grafit minerali, kritik hammadde olarak tanımlanmıştır. Grafit yatakları, grafitin ısı ve elektrik iletkenliği, ısıya dayanıklılığı gibi özellikleri nedeni ile ileri konularında kullanımı önemi yaygınlaşan stratejik bir cevherleşmedir. Gelecekte özellikle Grafen...

Skin detection remains a challenging task over several decades in spite of many techniques evolved. It is the elementary step of most of the computer vision applications like face recognition, human computer interaction, etc. It depends on the suitability of color space chosen, skin modeling and classification of skin and non-skin pixels under varying illumination conditions. This paper present...

In this paper we have described a steganalytic tool to detect the presence of hidden message in LSB steganography. It is a stego -only attack in LSB insertion for uncompressed color images encoded in 24 bit BMP format. The detection theory is based on statistical analysis of pixel pairs using their RGB components. The necessity of a variable threshold to mark the stego images is explained .The ...