ImageGear for C and C++ on Windows v19.5 - Updated
IG_FIP_FFT_inverse_to_image
This function performs an inverse Fast Fourier Transform.
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AT_ERRCOUNT ACCUAPI IG_FIP_FFT_inverse_to_image(
HIGCOMPLEXOBJ hIGComplexObj,
LPHIGEAR lphIGear,
enumIGFFTScalingMethods nScalingMethod,
AT_BOOL bCenterTransform
);
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| Name | Type | Description |
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| hIGComplexObj | HIGCOMPLEXOBJ | Handle of the input data. |
| lphIGear | LPHIGEAR | Handle of the result image. |
| 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
All pixel formats supported by HIGCOMPLEXOBJ object. See IG_FIP_co_obj_create.
Pixel format of the output image is Grayscale – 8 or 16 bpp.
FreqIP
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HIGCOMPLEXOBJ hIGComplexObj; /* Handle of input data */ HIGEAR hIGear; /* Handle of output image */ ... IG_FIP_FFT_inverse_to_image(hIGComplexObj, &hIGear, IG_FFT_SCALING_SQRTN, TRUE); ... |
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The difference between this function and IG_FIP_FFT_inverse() is that this function returns a HIGEAR as the result, using the default conversion type IG_FIPDATA_CONV_TYPE_REAL.