This work is a review over the articles on edge detection. At in the first place, it gives theoretical background, and after that reviews extensive variety of systems for edge detection. The review likewise thinks about the relationship in the categories and exhibits assessments with respect to their application, execution, and usage. It was expressed that the edge detection strategies basically are a combination of image smoothing and image separation in addition to a post-processing for edge marking. The image smoothing includes channels that reduce noise, regularize the numerical calculation, and give a parametric representation of the image that fills in as a scientific magnifying instrument to dissect it in distinctive scales and increase the precision and dependability of edge detection. The image separation gives intensity transition information in the image that is important to represent the position and quality of the edges and their introduction. The edge marking calls for post-preparing to smother the false edges, join the dispread ones, and produce a uniform form of items.
Keywords: Edge detection, image processing.
Priya Singh, Preeti Rai