convol_gaborConvolGaborConvolGaborconvol_gaborconvol_gabor

HALCON ScriptCpp++.NETPythonC

Short description

convol_gaborConvolGaborConvolGaborconvol_gaborconvol_gabor — Convolve an image with a Gabor filter in the frequency domain.

Signature

convol_gabor( image ImageFFT, image GaborFilter, out image ImageResultGabor, out image ImageResultHilbert )void ConvolGabor( const HObject& ImageFFT, const HObject& GaborFilter, HObject* ImageResultGabor, HObject* ImageResultHilbert )static void HOperatorSet.ConvolGabor( HObject imageFFT, HObject gaborFilter, out HObject imageResultGabor, out HObject imageResultHilbert )def convol_gabor( image_fft: HObject, gabor_filter: HObject ) -> Tuple[HObject, HObject]

Herror convol_gabor( const Hobject ImageFFT, const Hobject GaborFilter, Hobject* ImageResultGabor, Hobject* ImageResultHilbert )

Herror T_convol_gabor( const Hobject ImageFFT, const Hobject GaborFilter, Hobject* ImageResultGabor, Hobject* ImageResultHilbert )

HImage HImage::ConvolGabor( const HImage& GaborFilter, HImage* ImageResultHilbert ) const

HImage HImage.ConvolGabor( HImage gaborFilter, out HImage imageResultHilbert )

Description

convol_gaborConvolGabor convolves a Fourier-transformed image with a Gabor filter GaborFiltergaborFiltergabor_filter (see gen_gaborGenGabor) and its Hilbert transform in the frequency domain. The result image is of type 'complex'"complex".

Attention

The filtering is always done on the entire image, i.e., the domain of the image is ignored.

Execution information

Execution information

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).

• Multithreading scope: global (may be called from any thread).

Parameters

ImageFFTimageFFTimage_fft (input_object) (multichannel-)image(-array) → object (complex)HObject (complex)HImage (complex)HObject (complex)Hobject (complex)

Input image.

GaborFiltergaborFiltergabor_filter (input_object) multichannel-image → object (real)HObject (real)HImage (real)HObject (real)Hobject (real)

Gabor/Hilbert-Filter.

ImageResultGaborimageResultGaborimage_result_gabor (output_object) image(-array) → object (complex)HObject (complex)HImage (complex)HObject (complex)Hobject * (complex)

Result of the Gabor filter.

ImageResultHilbertimageResultHilbertimage_result_hilbert (output_object) image(-array) → object (complex)HObject (complex)HImage (complex)HObject (complex)Hobject * (complex)

Result of the Hilbert filter.

Example

(HDevelop)

gen_gabor(Filter,1.4,0.4,1.0,1.5,'n','dc_edge',512,512)
fft_generic(Image,ImageFFT,'to_freq',-1,'none','dc_edge','complex')
convol_gabor(ImageFFT,Filter,Gabor,Hilbert)
fft_generic(Gabor,GaborInv,'from_freq',1,'none','dc_edge','byte')
fft_generic(Hilbert,HilbertInv,'from_freq',1,'none','dc_edge','byte')
energy_gabor(GaborInv,HilbertInv,Energy)

Result

convol_gaborConvolGabor returns 2 (H_MSG_TRUE) if all images are of correct type. If the input is empty the behavior can be set via set_system(::'no_object_result',<Result>:). If necessary, an exception is raised.

Combinations with other operators

Combinations

Possible predecessors

fft_imageFftImage, fft_genericFftGeneric, gen_gaborGenGabor

Possible successors

power_bytePowerByte, power_realPowerReal, power_lnPowerLn, fft_image_invFftImageInv, fft_genericFftGeneric

Alternatives

convol_fftConvolFft

See also

convol_imageConvolImage

Module

Foundation