edge detection in image processing

[darova]

Try to binarize image

I1 = im2bw(I);
I2 = edge(I1);
imshow(I2)

Answer 1

[JESUS DAVID ARIZA ROYETH]

solution :

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

[K G V Kalyan Sreenivas Kumar]

Thanks david