How to Calculate Image Orientation in Matlab

Hello,

Can anybody tell me how to calculate Image Orientation in Matlab.




Regards,

Jawad Raza



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Does an image has orientation?
what is orientation of image?

China

--- On Fri, 9/19/08, jawaad aslam wrote:

From: jawaad aslam
Subject: [matlab] How to Calculate Image Orientation in Matlab
To: "Matlab - Yahoo Group"
Date: Friday, September 19, 2008, 6:44 PM

Hello,

Can anybody tell me how to calculate Image Orientation in Matlab.

Regards,

Jawad Raza



Start a New Thread

Dear All,
 
I am working on signal processing and analysis. I need your help on how to calculate Hilbert-Huang Transform (HHT) in MATLAB. In addition, I will also appreciate simple explanation on the operation of Wavelet transforms also in MATLAB.
 
Thanks you very much.
 
Philips Start a New Thread

Well an image can have an orientation. Depends on how you orient your
support (x y axis) of the image..

If you want to rotate or translate(move) your image..try a coordinate
transform where x_new = A*x_old_*(1/K) + B

here x_old is a vector of your original image coordinates
X_new = vector of new coordinates
A = rotation matrix (cosine and sine functions to rotate a point in space)
B = translation matrix
K = scaling factor (to make the image bigger or smaller)

This transform actually only effects your support so...its sort of
like orienting your image.

Try it out

--- In m..., jkZh wrote:
>
> Does an image has orientation?
> what is orientation of image?
>
> China
>
> --- On Fri, 9/19/08, jawaad aslam wrote:
>
> From: jawaad aslam
> Subject: [matlab] How to Calculate Image Orientation in Matlab
> To: "Matlab - Yahoo Group"
> Date: Friday, September 19, 2008, 6:44 PM
>
> Hello,
>
> Can anybody tell me how to calculate Image Orientation in Matlab.
>
> Regards,
>
> Jawad Raza
>
>
>
>
> Start a New Thread