MATLAB: Image Gradient Magnitude : Compute: Sobel Image Gradients (Gx and Gy) Gradient magnitude (Gmag) and Gradient direction(Gdir)

Question

Rahul Mishra 2020-6-5

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https://ww2.mathworks.cn/matlabcentral/answers/542504-matlab-image-gradient-magnitude-compute-sobel-image-gradients-gx-and-gy-gradient-magnitude-gm

回答： Chit La Pyae Myo Hein 2020-9-23

Please help he what to edit on code.....

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Answer 1

Chit La Pyae Myo Hein 2020-9-23

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/542504-matlab-image-gradient-magnitude-compute-sobel-image-gradients-gx-and-gy-gradient-magnitude-gm#answer_498865

在 MATLAB Online 中打开

img=imread('cameraman.tif');
[Gx,Gy]=imgradientxy(img,'sobel');
%Uncomment the code below to visualize Gx and Gy 
figure
imshowpair(Gx,Gy,'montage')
title(' Directional Gradients, Gx  and  Gy ,using Prewitt method')
%Uncomment the code below to visualize Gmag and Gdir 
imshowpair(Gx,Gy,'montage')
title( 'Gradient Magnitude (Left) and Gradient Direction (Right)')
[Gmag,Gdir] = imgradient(Gx,Gy);
imshowpair(Gmag,Gdir,'montage')
title('Gradient Magnitude (Left) and Gradient Direction (Right)')