P. Subashini

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Image segmentation is the first stage of processing in many practical computer vision systems. Development of segmentation algorithms has attracted considerable research interest, relatively little work has been published on the subject of their evaluation. Hence this paper enumerates and reviews mainly the image segmentation algorithms namely Otsu, Fuzzy C(More)
A mobile ad hoc network is an infrastructure less network, fast emerging today for deployment in variety of applications. During deployment, security emerges as a central requirement due to many attacks that affects the performance of the ad hoc networks. to end delay, Average packet delivery ratio, Routing overhead and Average jitter. 1. INTRODUCTION In(More)
Synthetic Aperture Radar (SAR) techniques represent a promising alternative compared to traditional surveillance methods. The capabilities of satellite based SAR systems are confirmed and specific data exploitation methods are still to be developed to provide an efficient automatic interpretation of SAR data. The mean of this paper is to analyze and compare(More)
Edge detection is an important process of image processing and it is the foundation of pattern recognition, which will affect the later processes. Especially in a noisy image, the edge detection is more important because noise is a common phenomenon in an image. This paper deeply studies the edge detection methods for noisy IR images and also studies the(More)
An exceptional effort has been extended in making a computer recognize both typed and handwritten characters automatically. Quite recent still today, the characters of English Language is been the main explore area for our researchers. Tamil under Asian languages has little or no attention is been given. The challenges posed by Indian languages are(More)
Mobile Ad-Hoc Network (MANET) is an emerging area with practical applications. An Ad-Hoc network consists of a collection of wireless mobile nodes that are capable of communicating with each other without the use of a network infrastructure. However, routing security in MANETs appears to be a problem due to open medium, dynamic topology and constrained(More)
Segmentation of target is an important step in forming realistic target models. To assist in classifying the relevant literature, two types of segmentation are identified where each type adds its own additional level of uniqueness. The first type is composed of the simplest forms of image analysis through thresholding, the second is characterized by region(More)
The problem of texture Segmentation involves subdividing an image into differently textured regions. Gabor filters produce outputs which are notably distinct for the different textured regions. Detecting the discontinuity in the filters output and their statistical properties help in segmenting and classifying a given image with different texture regions.(More)