Filtering/edge detection, gradients, Laplacians, Sobel, Canny, etc. briefly what do each technique (basic information). What do we...

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Electrical Engineering

Filtering/edge detection, gradients, Laplacians, Sobel,Canny, etc. briefly what do each technique
(basic information). What do we mean for segmentation?Any example?
Which technique of the above provides better edgedetection? Why?

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Definition of edges Edges are significant local changes of intensity in animage Edges typically occur on the boundary between two differentregions in an imageSobel OperatorSobel is one of the most commonly used edge detectors It isbased on convolving the image with a small separable and integervalued filter in the horizontal and vertical direction and istherefore relatively inexpensive in terms of computations TheSobel edge enhancement filter has the advantage of providingdifferentiating which gives the edge response and smoothingwhich reduces noise concurrentlyLaplacian OperatorLaplacian is somewhat different See Answer

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