Convolved

CONV_MTX Convolution matrix. If 'x' is a column vector of length 'nx', then conv_mtx(x,nh) gives a toeplitz matrix 'X' of size (nx+nh-1) times (nh). 'nh' is the length of the column vector 'h' with which 'x' is convolved. Thus finally 'X*h' is same as conv(x,h). If 'x' and 'h' are row vectors,...

Implementation of the well known Haralick Edge Detector.Here are the steps of the algorithm : (1) Fit a bi-cubic polynomial to a small neighborhood of each pixel (this step provides smoothing too). (2) Compute (analytically) the second and third directional derivatives in the direction of...

Achieve a 3D convolution in the fourrier domain.% convolution3D_FFTdomain - Performs a fast 3D convolution between volumes using mutliplication in the Fourrier spaceSyntax: [outVol] = convolutionInFFTdomain(inVol,inKer)Inputs: inVol - input volume inKer - input kernel inMsg - display succes...


Platforms: Matlab

Animation of Graphical Convolution This is a simple MATLAB demo to animate the process of convolution. It is meant to help student visualize how convolution works. When this script is run, two functions f(t) and go(t) are convolved and the output figure will show animated graphical convolution.


Platforms: Matlab

Haniport Levee lets you solve a new kind of puzzle, a convolved-patterns puzzle, unique and challenging but with classic familiarity. Discover a simple chess board filled with gems, some rose red and some crystal blue. To the left are a number of assorted puzzle pieces, up to seven different...


Platforms: Mac

The IEEE Multipath Channel block simulates an indoor UWB channel as described in "A Channel Model for Ultrawideband Indoor Communications" by J.R. Foerster, M. Pendergrass and A.F. Molisch, November 2003, and attempts to incorporate the processes used in their MATLAB scripts.The discrete input is...


Platforms: Matlab

This function is an implementation of N-dimensional convolution for the special case when the convolution kernel is separable.A continuous function f(x1, x2, ... xN) is considered separable if there exist N functions f1, f2, ... fN such that f(x1, x2, ... xN) = f1(x1)f2(x2)f3(x3)...fN(xN).In two...


Platforms: Matlab

If the input is a bandlimited signal containing components at DC - 0.5Fs where Fs is the sample rate, SINCRESAMPLE will return the signal that would have been seen with a higher sampling rate (and the same filter settings). The algorithm depends on the fact that the bandlimited signal is...


Platforms: Matlab

This program to perform convolution has been written keeping the ordinary polynomial multiplication in mind and in my opinion is the most easily understood program among the ones I have seen on the web or written by other fellow workers although it may not be the best program in its design. The...


Platforms: Matlab

This package contains a Matlab reference implementation of a novel algorithm to estimate the direct-to-reverberant energy ratio (DRR) blindly from a dual-channel reverberant speech signal.Within the Matlab script 'DRR_est_example.m', a speech signal is convolved with room impulse responses having...


Platforms: Matlab

This function can be used instead of CONV2 (with the same arguments). It will produce the same results to within a small tolerance, and may be faster in some cases (and slower in others). Two additional shape options are included, offering periodic and reflective boundary conditions.The...


Platforms: Matlab