bandbank -- isotropic image spectral decomposition and filtering

Version 1.0.0.0 (3,61 ko) par Tristan Ursell
Decompose images into spatially isotropic spectral component images.
0.0
(0)
80 téléchargements
Mise à jour 24 jan. 2017

Afficher la licence

Tristan Ursell
Bandpass filter bank
Jan 2017
Im2=bandbank(Im1,dF,NF)
Im2=bandbank(Im1,dF,NF,beta)
Im2=bandbank(Im1,[band_vec],beta)

Im1 = input image (single channel)
dF = stepsize in radial frequency space
NF = number of filters applied
NF=1 means no filter
NF=2 means low pass and high pass about dF
NF>2 bandpass filters in steps of dF

Im2 = spectrally decomposed output images from Im1

The optional parameter 'beta' sets the sharpness of the frequency cutoff
between the bands, higher numbers are sharper cutoffs -- smoother cutoffs
reduce ringing, but have mixed fequency regions with other bands. The
default value is beta=0.5.

The decomposed images have the property that 'sum(Im2,3)=Im1' (to a good approximation).

Citation pour cette source

Tristan Ursell (2024). bandbank -- isotropic image spectral decomposition and filtering (https://www.mathworks.com/matlabcentral/fileexchange/61255-bandbank-isotropic-image-spectral-decomposition-and-filtering), MATLAB Central File Exchange. Récupéré le .

Compatibilité avec les versions de MATLAB
Créé avec R2013b
Compatible avec toutes les versions
Plateformes compatibles
Windows macOS Linux
Catégories
En savoir plus sur Frequency Transformations dans Help Center et MATLAB Answers

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Version Publié le Notes de version
1.0.0.0