A REVIEW OF SPEED PERFORMANCE EVALUATION OF VARIOUS EDGE DETECTION METHODS OF IMAGES

摘要

In image processing, edge detection is the essential process and the detection resultsdirectly affects the image analysis. Edge detection of an image minimizes appreciably the amount of dataand discards information that are less important, keeping the important structural properties of animage. In this paper, various spatial domain edge detection approaches are discussed and theirperformance are compared on the basis of edge continuity and speed of operation, by using some imagesof different features. Edge detection algorithms basically works on gray levels of pixels, it is utilize totrack targets, to compress data, in face recognition, in counterfeit detection of fake bills, in image analysisand in medical imaging.