This function performs a forward Fast Fourier Transform.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_FIP_FFT_forward(
HIGCOMPLEXOBJ hIGComplexObj,
LPHIGCOMPLEXOBJ lphIGComplexObjOut,
enumIGFFTScalingMethods nScalingMethod,
AT_BOOL bCenterTransform
);
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Arguments:
Name |
Type |
Description |
hIGComplexObj |
HIGCOMPLEXOBJ |
Handle of the input data. |
lphIGComplexObjOut |
LPHIGCOMPLEXOBJ |
Handle of the result data. |
nScalingMethod |
enumIGFFTScalingMethods |
Specifies the method of scaling the result data. |
bCenterTransform |
AT_BOOL |
Flag to indicate whether to center the transform. |
Return Value:
Returns the number of ImageGear errors that occurred during this function call.
Supported Raster Image Formats:
All pixel formats supported by HIGCOMPLEXOBJ object. See IG_FIP_co_obj_create.
Sample:
FreqIP
Example:
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HIGCOMPLEXOBJ hIGComplexObj; /* Handle of input data */
HIGCOMPLEXOBJ hIGComplexObjOut; /* Handle of result data */
...
IG_FIP_FFT_forward(hIGComplexObj, &hIGComplexObjOut, IG_FFT_SCALING_SQRTN, TRUE);
...
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