<< Chapter < Page
  Digital signal processing - dsp     Page 2 / 21
Chapter >> Page >
ImgMod30.inverseXform2D(realSpect,imagSpect, recoveredSpatialData);

The first two parameters in the above statement refer to array objects containing the complex spectral data to be transformed. The third parameterrefers to an array that will be populated with the results of the inverse transform.

To rearrange the spectral data for plotting, execute a statement similar to the following where the parameter refers to an array object containing thespectral data to be rearranged.

double[][]shiftedRealSpect = ImgMod30.shiftOrigin(realSpect);

Digital signal processing (DSP)

This module will cover some technically difficult material in the general area of Digital Signal Processing, or DSP for short. As usual, the betterprepared you are, the more likely you are to understand the material. For example, it would be well for you to already understand the one-dimensionalFourier transform before tackling the 2D Fourier transform. If you don't already have that knowledge, you can learn about one-dimensional Fourier transforms bystudying the following modules :

In addition, I strongly recommend that you study Java1490-2D Fourier Transforms using Java, Part 1 before embarking on this part.

Will use in subsequent modules

The 2D Fourier transform has many uses. I will use the 2D Fourier transform in several future modules involving such diverse topics as:

  • Processing image pixels in the wavenumber domain
  • Advanced steganography (hiding messages in images)
  • Hiding watermarks and trademarks in images

Viewing tip

I recommend that you open another copy of this module in a separate browser window and use the following links to easily find and view the Figuresand Listings while you are reading about them.

Figures

Listings

Questions & Answers

1. Discuss the processes involved during exchange of fluids between intra and extracellular space.
Mustapha Reply
what are components of cells
ofosola Reply
twugzfisfjxxkvdsifgfuy7 it
Sami
58214993
Sami
what is a salt
John
the difference between male and female reproduction
John
what is computed
IBRAHIM Reply
what is biology
IBRAHIM
what is the full meaning of biology
IBRAHIM
what is biology
Jeneba
what is cell
Kuot
425844168
Sami
what is biology
Inenevwo
what is sexual reproductive system
James
what is cytoplasm
Emmanuel Reply
structure of an animal cell
Arrey Reply
what happens when the eustachian tube is blocked
Puseletso Reply
what's atoms
Achol Reply
discuss how the following factors such as predation risk, competition and habitat structure influence animal's foraging behavior in essay form
Burnet Reply
cell?
Kuot
location of cervical vertebra
KENNEDY Reply
What are acid
Sheriff Reply
define biology infour way
Happiness Reply
What are types of cell
Nansoh Reply
how can I get this book
Gatyin Reply
what is lump
Chineye Reply
what is cell
Maluak Reply
what is biology
Maluak
what is vertibrate
Jeneba
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, Digital signal processing - dsp. OpenStax CNX. Jan 06, 2016 Download for free at https://legacy.cnx.org/content/col11642/1.38
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Digital signal processing - dsp' conversation and receive update notifications?

Ask