how to find derivative of an image with respect to x and y axis ?
4 views (last 30 days)
Show older comments
i have matlab code for an image matrix as given below and i have to find derivative along x and y axis then how to get?
m=1000; n=m; f1=20; f2=0; for i=1:m; for j=1:n; a(i,j)=exp(1i*2*pi*(f1*j/n+f2*i/m)); end end subplot(2,2,2),imshow(a,[]);
1 Comment
Rik
on 22 Feb 2017
You should also have a look at the documentation for diff and meshgrid
doc diff
doc meshgrid
Answers (0)
See Also
Categories
Find more on Geometric Transformation and Image Registration in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!