apply sobel filter to image

Sun Mar 27, 2011 9:18 pm

sobel operator is used for edge detection using first derivative.Horizontal and vertical components used .Gradient is the square root it taken for the sum of two components .

Code:: clc; %% create a new figure to show the image . newImg = imread('Water lilies.jpg'); figure(1); %% show the loaded image. imshow(newImg); figure(2); %% convert RGB to gray scale. I = rgb2gray(newImg) imshow(I); %% apply sobel filter. size(I) BW = edge(I,'sobel',0.1) ; imshow(BW);

Attachments

: sobel.GIF (54.99 KiB) Viewed 25547 times