Technical discussion about Matlab and issues related to Digital Signal Processing.
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How to find horizontal and vertical gradidnet of an image.is there
any command derivation of an image?.
--- ceg9901 <> wrote: >
> How to find horizontal and vertical gradidnet of an
> image.is there
> any command derivation of an image?.
Follow these steps:
1)Get the matrix:
M=getframe(gca); % assuming it is already displayed.
If not, use imread.
a) If it is a BW image go to next step.
b) If it is a colored image: P=rgb2gray(P); % Need
images toolbox. Otherwise: P=sum(double(P,3))/3
3)[Dx,Dy] = gradient(P);
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