this paper used the results of a research project entitled biodiversity of inland water fishes of iran which was carried out from 2005 to 2010. some 3500 fish specimens were obtained from different basins of iran by using electrofishing method, cast net, gill net and hook. using criteria such as size, shape and color, some of them are considered suitable to keep in aquarium. due to the results ...

We introduce an algorithm for color halftoning using stochastic dithering. This algorithm has three distinguishedfeatures: it uses clustering, it performs error diffusion and it employes an adaptive criteria to change the cluster sizeaccording to the variation of the image color values.The method incorporates features from the traditional amplitude modulated (AM) digital halftoning ...

This paper presents an autonomous vision-based obstacle avoidance system. The system consists of three independent vision modules for obstacle detection, each of which is computationally simple and uses a di erent criterion for detection purposes. These criteria are based on brightness gradients, RGB (Red, Green, Blue) color, and HSV (Hue, Saturation, Value) color, respectively. Selection of wh...

Quality control is an important issue in the ceramic tile industry. Price of ceramic tiles also depends on purity of texture, accuracy of color, shape etc. Considering this criteria, an integrated defect detection and classification technique has been proposed which plays an important role in ceramic tiles industries to detect the defects and to control the quality of ceramic tiles.GLCM extract...

Reduced ordering based vector filters have proved successful in removing long-tailed noise from color images while preserving edges and fine image details. These filters commonly utilize variants of the Minkowski distance to order the color vectors with the aim of distinguishing between noisy and noise-free vectors. In this paper, we review various alternative distance measures and evaluate the...

In this paper we describe a method of learning hierarchical representations for describing and recognizing gestures expressed as one and two arm movements using competitive learning methods. At the low end of the hierarchy, the atomic motions (“letters”) corresponding to flow fields computed from successive color image frames are derived using Learning Vector Quantization (LVQ). At the next int...

sodium bentonite can bind to dietary pigment and decreases yolk color scale. sodium bentonite is one of the main parts of formycine® gold, the effect of different levels of formycine® gold and dietary pigment on egg quality, egg yolk color and performance criteria of laying hens from 26 to 34 week of age were studied. one hundred ninety two hy-line hens were divided into 24 groups of 8 birds ea...

This study was conducted to establish genetic criteria for phenotypic characteristics of Hanwoo cattle based on allele frequencies and genetic variance analysis using microsatellite markers. Analysis of the genetic diversity among 399 Hanwoo cattle classified according to nose pigmentation and coat color was carried out using 22 microsatellite markers. The results revealed that the INRA035 locu...

Human skin color is a powerful fundamental cue that can be used in particular, at an early stage, for the important applications of face and hand detection in color images [l] [2], and ultimately, for meaningful human-computer interactions. In this paper, we analyze the distribution of human skin for a large number of chrominance spaces and for skin images recorded with two different camera sys...