fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv (Operator)
Name
fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv — Compute the inverse fast Fourier transform of an image.
Signature
def fft_image_inv(image: HObject) -> HObject
Description
fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv calculates the inverse Fourier transform of
the input image (ImageImageImageimageimage), i.e., it transforms the image
back into the spatial domain. This corresponds to the call
fft_generic(Image, ImageFFT, 'from_freq', 1, 'sqrt', 'dc_center', 'byte')fft_generic(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte")FftGeneric(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte")FftGeneric(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte")fft_generic(Image, ImageFFT, "from_freq", 1, "sqrt", "dc_center", "byte").
Attention
The transformation is always performed for the entire image, i.e., the
domain of the image is ignored.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on tuple level.
- Automatically parallelized on channel level.
- Automatically parallelized on internal data level.
Parameters
ImageImageImageimageimage (input_object) (multichannel-)image(-array) → objectHImageHObjectHObjectHobject (complex)
Input image.
ImageFFTInvImageFFTInvImageFFTInvimageFFTInvimage_fftinv (output_object) image(-array) → objectHImageHObjectHObjectHobject * (byte)
Inverse-Fourier-transformed image.
Result
fft_image_invfft_image_invFftImageInvFftImageInvfft_image_inv returns 2 (
H_MSG_TRUE)
if the input image is of correct
type. If the input is empty the behavior can be set via
set_system(::'no_object_result',<Result>:)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>). If necessary,
an exception is raised.
Possible Predecessors
convol_fftconvol_fftConvolFftConvolFftconvol_fft,
convol_gaborconvol_gaborConvolGaborConvolGaborconvol_gabor,
fft_imagefft_imageFftImageFftImagefft_image,
optimize_fft_speedoptimize_fft_speedOptimizeFftSpeedOptimizeFftSpeedoptimize_fft_speed,
read_fft_optimization_dataread_fft_optimization_dataReadFftOptimizationDataReadFftOptimizationDataread_fft_optimization_data
Possible Successors
convert_image_typeconvert_image_typeConvertImageTypeConvertImageTypeconvert_image_type,
energy_gaborenergy_gaborEnergyGaborEnergyGaborenergy_gabor
Alternatives
fft_genericfft_genericFftGenericFftGenericfft_generic,
rft_genericrft_genericRftGenericRftGenericrft_generic
See also
fft_imagefft_imageFftImageFftImagefft_image,
fft_genericfft_genericFftGenericFftGenericfft_generic,
energy_gaborenergy_gaborEnergyGaborEnergyGaborenergy_gabor
Module
Foundation