MATLAB: Edge detection in image processing

edge detedtionimage processingmatlab function

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solution :

I=rgb2gray(imread('coins1.jpg'));
imshow(I)
bw1=edge(I,'sobel');
figure
imshow(bw1)

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MATLAB: How to produce edge detected image

 I = imread('circuit.tif');
 BW1 = edge(I,'prewitt');
 BW2 = edge(I,'canny');
 BW3 = edge(I,'sobel');
 figure, imshow(BW1)
 figure, imshow(BW2)
 figure, imshow(BW3)

Or you can choose manual threshold like,

 BW1 = edge(I,'prewitt',0.4);
 BW2 = edge(I,'canny',0.4);
 BW3 = edge(I,'sobel',0.4);
 figure, imshow(BW1)
 figure, imshow(BW2)
 figure, imshow(BW3)

MATLAB: Matlab imshow

this gives an error with imsubstract because the images are not of the same size.

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MATLAB: How to produce edge detected image

MATLAB: Matlab imshow

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