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Essay On Image Processing

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AN IMPROVED EDGE DETECTION METHOD USING HYBRID FUZZY COGNITIVE MAP FOR BIOMETRIC IMAGES
CHAPTER 1

INTRODUCTION

The growing possibilities of modern communication need the special mean of security on computer network. In the computer world, it is very important to keep secret information secret, private information private and protect the copyrights of data. To accomplish this task, new methods based on the principle of Image processing are being developed and used. Image processing is any form of signal processing for which the input is an image, such as photographs or frames of video, the output of image processing can be either an image or a set of characteristics related to the image. Now, an image is an array of numbers that represent light intensities at various points (pixels).These pixels make up the image raster data [N. F. Johnson, S. Jajodia, 1998]. In computer vision, image processing can be done through digital images. A digital image is …show more content…

Since, the field image processing is difficult to pre-process the data even though it has been done successfully, due to the sensitivity in noise and inaccuracy, computational complexity which makes the task hard. To overcome this situation, frequent updation in is needed in the algorithms.

PROBLEM SPECIFICATION

The goal of edge detection is to convert a 2D image into a set of curves. The relevant features are expected to be the boundaries of objects that tend to produce sudden changes in the image intensity. They can show where shadows fall in an image or any other distinct change in the intensity of an image. The quality of edge detection is highly dependent on lighting conditions, the presence of objects of similar intensities, density of edges in the scene. The following criteria are considered for this

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