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From: Vinaya Kamath on 11 Apr 2010 03:19
ImageAnalyst <imageanalyst(a)mailinator.com> wrote in message <e5730eaa-ce50-4a18-859f-950385a4f70d(a)o6g2000yqj.googlegroups.com>...
> On Jul 22, 5:26 am, "ali " <rebelfi...(a)gmail.com> wrote:
> > &#305; wonder is there m file or codes for dimesnion reduction in matlab about random projection like pca,svd
>
> ------------------------------------
> In the Image Processing Toolbox:
>
>
> radon
>
> Radon transform
> Syntax
>
> R = radon(I, theta)
> [R,xp] = radon(...)
> Description
>
> R = radon(I, theta) returns the Radon transform R of the intensity
> image I for the angle theta degrees.
>
> The Radon transform is the projection of the image intensity along a
> radial line oriented at a specific angle. If theta is a scalar, R is a
> column vector containing the Radon transform for theta degrees. If
> theta is a vector, R is a matrix in which each column is the Radon
> transform for one of the angles in theta. If you omit theta, it
> defaults to 0:179.
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