This function performs an inverse Fast Fourier Transform.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_FIP_FFT_inverse (
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_inverse(hIGComplexObj, &hIGComplexObjOut, IG_FFT_SCALING_SQRTN, TRUE); ... |
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