Time–frequency analysis

This program plots spectrograms (intensities versus frequencies, plotted against time). in matlab

The following Matlab project contains the source code and Matlab examples used for this program plots spectrograms (intensities versus frequencies, plotted against time). . This program plots spectrograms (vertical slices of intensities versus frequencies, with slices plotted against time).

A wavelet domain non parametric statistical approach for image denoising in matlab

The following Matlab project contains the source code and Matlab examples used for a wavelet domain non parametric statistical approach for image denoising. This is a demo program of the paper J. Tian, L. Chen and L. Ma, "A wavelet-domain non-parametric statistical approach for image denoising," IEICE Electronics Express, Vol. 7, Sep. 2010, pp. 1409-1415.

Image despeckling using a non parametric statistical model of wavelet coefficients in matlab

The following Matlab project contains the source code and Matlab examples used for image despeckling using a non parametric statistical model of wavelet coefficients. This is a demo program of the paper J. Tian and L. Chen, "Image despeckling using a non-parametric statistical model of wavelet coefficients," Biomedical Signal Processing and Control, Vol. 6, No. 4, Oct. 2011, pp. 432-437.

Bistatic ambiguity function in matlab

The following Matlab project contains the source code and Matlab examples used for bistatic ambiguity function. function varargout=bisambfun(u,r,fs,cut) %% Bistatic ambiguity function(u,r,fs,cut) % % This function aims to calculate the values of the bistatic ambiguity % function of the signals u (the signal measured) and r (the reference % signal), sampled to the fs frequency.

Adaptive multi focus image fusion using a wavelet based statistical sharpness measure in matlab

The following Matlab project contains the source code and Matlab examples used for adaptive multi focus image fusion using a wavelet based statistical sharpness measure. This is a demo program of the paper J. Tian and L. Chen “Adaptive multi-focus image fusion using a wavelet-based statistical sharpness measure,” Signal Processing, Vol. 92, No. 9, Sep. 2012, pp. 2137-2146.

Stft Matlab Code

The short-time Fourier transform (STFT), or alternatively short-term Fourier transform, is a Fourier-related transform used to determine the sinusoidal frequency and phase content of local sections of a signal as it changes over time.

The following matlab project contains the source code and matlab examples used for stft.

This exercise plots wideband and narrowband speech spectrograms for a user-designated speech file. in matlab

The following Matlab project contains the source code and Matlab examples used for this exercise plots wideband and narrowband speech spectrograms for a user-designated speech file. . The sound spectrogram is one of the most fundamental tools of digital speech processing.

Inverse short time fourier transformation (istft) with matlab implementation

The following Matlab project contains the source code and Matlab examples used for inverse short time fourier transformation (istft) with matlab implementation. The present code is a Matlab function that provides an Inverse Short-Time Fourier Transformation (ISTFT) of a given spectrogram stft(f, t) with time across columns and frequency across rows.

A wavelet domain non parametric statistical approach for image denoising in matlab

The following Matlab project contains the source code and Matlab examples used for a wavelet domain non parametric statistical approach for image denoising. This is a demo program of the paper J. Tian, L. Chen and L. Ma, "A wavelet-domain non-parametric statistical approach for image denoising," IEICE Electronics Express, Vol. 7, Sep. 2010, pp. 1409-1415.

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