Filter noise and interpolate microscopy images in frequency domain by Shalin Mehta

Remove spatial frequencies beyond the optical cutoff and perform physically accurate interpolation. (microscopy, filtering, interpolation)

[out,outscale]=opticalLowpassInterpolation(in,inscale,fcut,...

y=jinc(r)

TestBench_opticalLowpassInterpolation_Airy.m

Recursive Least Squares Filter by Ryan Fuller

Implementation of RLS filter for noise reduction. (rls, recursive least squar..., adaptive filter)

RLSFilterIt(n,x,fs)

sinesum by Srikanth

SINESUM Estimates a signal as a sum of pure sine waves of known frequency (signal processing, signal amplitude, signal estimation)

sinesum(signal, freq, Fs)

MMSE based noise PSD tracking algorithm by Richard Hendriks

Matlab implementation of an MMSE based noise PSD tracking algorithm for speech enhancement. (speech enhancement, noise reduction, noise psd tracking)

ParCylFun.m

[G ]=tab_inc_gamma(Rprior,par);

[G1,G2]=TabulateGainGamma1(Rprior,Rpost,nu,K);

Guided Filter by Rachel

An 2D edge-preserving filter derived from a local linear model. Related to bilateral filter. (edgepreserving, filtering, hdr compression)

guided_filter(input, guide, epsilon, win_size)

guided.m

Edge detection by nonlinear derivatives by Olivier LALIGANT

This short demo presents an efficient algorithm for edge detection. (image processing, edge detection, edge localization)

edgeNL()

Kalman filter for noisy movies by Rob Campbell

Applies a Kalman filter to the time domain of an image sequence. (image processing, movie, filter)

exampleFilter

imageStack=Kalman_Stack_Filter(imageStack,gain,percentvar)

Toolbox for log-spectral magnitude MMSE estimators under super-Gaussian densities by Richard Hendriks

Toolbox for log-spectral magnitude MMSE estimators under super-Gaussian densities. (signal processing, speech, noise reduction)

[G1]=TabulateGainGamma2logmmse(Rprior,Rpost,nu);

[gains]=lookup_gain_in_table(G,a_post,a_priori,a_post_range...

hg=ConflHyperGeomFun(a,b,x);

Interactive Smoothing by Tom O'Haver

Interactive smoothing for time-series signals (chemistry, physics, smoothing)

DemoSmooth1(n,h)

DemoSmooth2(n,h)

DemoSmooth3(n,h)

Toolbox for MMSE estimators of DFT coefficients under the generalized Gamma density by Richard Hendriks

Estimators of complex-DFT, magnitude-DFT and magnitude squared-DFT coefficients for noise reduction. (signal processing, speech, speech enhancement)

[G1,G2]=TabulateGainGamma1(Rprior,Rpost,nu,K);

[G1,G2]=TabulateGainGamma2(Rprior,Rpost,nu);

[G]=TabulateGenGam1dft(Rksi,Rgam,nu,K);

Noise Reduction GUI using Low Pass Filter by Kundan

Its a Matlab GUI for reduction of Noise in Human Voise using a custom designed Chebyshev FIR filter. (audio processing, noise reduction, fir filter)

untitled3(varargin)

Rotating Kernel Transformation (Lee & Rhodes) by Florian Bazant-Hegemark

Filter emphasising the shape of the kernel (eg straight line) within an image (filtering, rotating kernel trans..., speckle)

[output, convpages, kernel]=rktfilt(matrix, kernel, type)

[output]=rktkern(slen, width)

rkttest.m

MMSE STSA by Esfandiar Zavarehei

Ephraim's MMSE STSA Speech Enhancemnet method with decision directed method. (audio processing, video processing, speech enhancement)

output=MMSESTSA84(signal,fs,IS)