[Insight-users] Computes the gradient of an image by convolution with the first derivative of a Gaussian.

[Siddharth Srivastava]

Hi nicrey,
      see for example the following for a nice introduction to the
principle. You many also want to browse the same link from a level
up for some very nice lecture notes on the topic by Prof. Romeny
http://bmia.bmt.tue.nl/Education/Courses/FEV/book/pdf/05%20Multi-scale%20derivatives%20-%20Implementations.pdf

sid.

On Mon, Aug 22, 2011 at 2:12 PM, nicrey <nicolasreyv at gmail.com> wrote:

> Hi ITK Users,
>
> I want to calculate the gradient of an image. I have used the
> "itkGradientRecursiveGaussianImageFilter.h" function. Which is said to
> "Compute the gradient of an image by convolution with the first derivative
> of a Gaussian" is there any place where I can find the exact formula that
> ITK uses to create the "first derivative of the Gaussian" ? without having
> to go an look at the code of ITK ?
>
> Thanks,
>
> Nicolas Rey-Villamizar
>
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