Algorithm and Technique on Various Edge Detection : A Survey
Rashmi Rashmi, Mukesh Kumar, Rohini Saxena · Signal & Image Processing An International Journal · 2013
An edge may be defined as a set of connected pixels that forms a boundary between two disjoints regions.Edge detection is basically, a method of segmenting an image into regions of discontinuity.Edge detection plays an important role in digital image processing and practical aspects of our life..In this paper we studied various edge detection techniques as Prewitt, Robert, Sobel, Marr Hildrith and Canny operators.On comparing them we can see that canny edge detector performs better than all other edge detectors on various aspects such as it is adaptive in nature, performs better for noisy image, gives sharp edges , low probability of detecting false edges etc.