[ITK] 3D Sobel implementation

[Dženan Zukić]

Hi Artem,

looking at the Wikipedia article
<https://en.wikipedia.org/wiki/Sobel_operator>, the first reference is this:
https://www.researchgate.net/publication/239398674_An_Isotropic_3_3_Image_Gradient_Operator

HTH,
Dženan

On Wed, Feb 24, 2016 at 4:59 AM, Artem Amirkhanov <artem.ogre at gmail.com>
wrote:

> Hello,
>
> In the documentation of SobelOperator (
> http://www.itk.org/Doxygen/html/classitk_1_1SobelOperator.html) the
> original technical report by Irwin Sobel is mentioned: "Irwin Sobel. An
> Isotropic 3x3x3 Volume Gradient Operator. Technical report, Hewlett-Packard
> Laboratories, April 1995."
>
> This paper is nowhere to be found online and ITK is basically the only
> place that refers to it. Could anyone please provide this paper to me? I
> would really like to clarify some moments in the derivation of the operator.
>
> Thank you,
> Artem
>
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