Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2000
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2000

[Date Index] [Thread Index] [Author Index]

Search the Archive

image 2-d Fouriertransform ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg21867] image 2-d Fouriertransform ?
  • From: maurus <maurus at gmx.de>
  • Date: Wed, 2 Feb 2000 22:54:23 -0500 (EST)
  • Organization: [posted via] Leibniz-Rechenzentrum, Muenchen (Germany)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello,

sorry for this question but ..

i have a 2-d image with 8 bit grey level.
Now i make a 2-d-Fouriertransform of the image (in  Mathematica)
The result is a Picture with 4 quadrants, were the signals are
significant.

Now my questions:
I think, only the first quadrant ist important ? Rest ist random ?
What does the axis, the results  means ?



If someone canl help me, i can send an example for better understanding.

In this case, the Helpfunktion in Mathematica ist not to good.

Thanks in advance

Maurus



  • Prev by Date: assumptions question
  • Next by Date: Re: Sturm-Liouville Problem (differential equation eigenvalue problem)
  • Previous by thread: Re: assumptions question
  • Next by thread: Re: image 2-d Fouriertransform ?