ImageGear Professional DLL for Windows
IG_FIP_FFT_forward_from_image
| ImageGear Professional v18.2 > API Reference Guide > FreqIP Component API Reference > FreqIP Component Functions Reference > FFT Functions > IG_FIP_FFT_forward_from_image |
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
);
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| Name | Type | Description |
| 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); ... |
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The difference between this function and IG_FIP_FFT_forward() is that this function takes a HIGEAR as the input.