This function performs a forward Fast Fourier Transform.
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AT_ERRCOUNT ACCUAPI IG_FIP_FFT_forward_from_image( HIGEAR hIGear, LPHIGCOMPLEXOBJ lphIGComplexObj, enumIGFFTScalingMethods nScalingMethod, AT_BOOL bCenterTransform ); |
Name | Type | Description |
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hIGear | HIGEAR | Handle of the image to be processed. |
lphIGComplexObj | 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. |
Returns the number of ImageGear errors that occurred during this function call.
Grayscale - 8, 16, 32 bpp.
FreqIP
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HIGEAR hIGear; /* Handle of input image */ HIGCOMPLEXOBJ hIGComplexObjOut; /* Handle of output data */ ... IG_FIP_FFT_forward_from_image(hIGear, &hIGComplexObjOut, IG_FFT_SCALING_SQRTN, TRUE); ... |
The difference between this function and IG_FIP_FFT_forward() is that this function takes a HIGEAR as the input.