ISIS 3 Application Documentation
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Apply an Inverse Fourier Transform on a magnitude/phase pair of cubes
Description
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Examples
History
Description
This program accepts two cubes, most likely acquired from the fft program, containing the magnitude and phase angle data of a Fourier transformed image and returns the inverse.
The output cube will contain an AlphaCube group if the input cube to the fft program contained one. For exmaple, if a cube was cropped and then run through the fft program, the output cube from this program will contain the original AlphaCube group.
Categories
Related Objects and Documents
Applications
Parameter Groups
Files
| Name | Description |
|---|---|
| MAGNITUDE | Magnitude input cube |
| PHASE | Phase input cube |
| TO | Output cube. |
Files: MAGNITUDE
Description
The input cube containing the image magnitude data.
| Type | cube |
|---|---|
| File Mode | input |
| Filter | *.cub |
Files: PHASE
Description
The input cube containing the image phase angle data.
| Type | cube |
|---|---|
| File Mode | input |
| Filter | *.cub |
Files: TO
Description
The result of the inverse transform.
| Type | cube |
|---|---|
| File Mode | output |
| Filter | *.cub |
Examples
Example 1
ifft example
Description
Command Line
GUI Screenshot
ifft GUI
|
Example GUI Screenshot of GUI with parameters filled in to perform the ifft application |
Input Images
Magnitude image
|
Example magnitude output
Parameter Name:
MAGNITUDE This is the magnitude output of the transform of peaks.cub. |
Phase image
|
Example phase output
Parameter Name:
PHASE This is the phase output of the transform of peaks.cub. |
Output Image
Output image
|
Example output
Parameter Name:
FROM This is the output image, peaks.cub. |
History
| Jacob Danton | 2005-11-28 | Original version |
| Brendan George | 2006-09-28 | Documentation fixes |
| Steven Lambright | 2008-05-12 | Removed references to CubeInfo |
| Steven Lambright | 2008-10-16 | Fixed documentation: example GUI screenshots were missing, they should now exist. The name of the GUI screenshot was incorrect, "fft" was changed to "ifft." |
| Steven Lambright | 2012-02-24 | This program now takes advantage of multiple global processing threads. |
| Ian Humphrey | 2017-08-19 | Now removes the AlphaCube group from the output cube if the fft input cube did not have an AlphaCube group. Fixes #4907. |