MATLAB: Gradient Field of an Image…

fieldgradientimage

Hi,

Does anyone know how to calculate the gradient field of an image? I have checked the use of Quiver plots to achieve this, but am having difficulties applying it to an image…

Many thanks in advance for any help anyone can give!

Phil

Best Answer

You can calculate the gradient using:

 doc gradient

and then use the results from that for your quiver plot.

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MATLAB: Problem regarding using fminunc

One obvious approach is to use an options structure:

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MATLAB: Recognise the test image…

This might be because the code must be finding the minimum distance between test images and images in database. And then outputting result according to the minimum distance found. It might have not been programmed for the kind of output u are expecting. Because for that, you have to specify some threshold value say, t. Then if Distance > t, it must output "Not Found" and if Distance < t, it must output the found image.

Best Answer

Related Solutions

MATLAB: Problem regarding using fminunc

MATLAB: Recognise the test image…

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