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updated 10 years ago

Envelope1.1 by Lei Wang

A generalized function can plot the envelope of any given data. (specialized, plotting, envelope)

envelope(x,y,interpMethod)

DemoEnvelope.m

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updated 11 months ago

Volumetric Data Explorer by Adam Filion

App for exploring higher dimensional data using volumetric visualizations and animation. (app, gui, visualization)

Data Explorer

calculatePixelSizes( availableSize, sizes, minSizes, padd...

callCallback( callback, varargin )

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updated 5 years ago

smooth2a by Greg Reeves

Smooths a 2D matrix using a mean filter over a user-defined rectangle. Ignores and preserves NaNs. (2d, approximation, interpolation)

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updated 1 year ago

Hiding multiple Text pages into a Color image by Cherma Rajan A

This program can embed/hide maximum of six monochrome Text pages into a Color image without loss. (color, watermarking, text hiding)

HIDING MULTIPLE TEXT PAGES INTO A COLOR IMAGE

altertxt(im_tx1,im_tx2)

extracttxt(im)

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updated almost 5 years ago

Linear Regression with Errors in X and Y by Travis Wiens

Calculates slope and intercept for linear regression of data with errors in X and Y. (mathematics, measurement, statistics)

ellipse(Xc,Yc,dX,dY,N_p)

york_fit(X,Y,sigma_X,sigma_Y, r)

demo_york.m

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updated 8 years ago

Fast 2-dimensional interpolation by Nathaniel Brahms

Provides a 5x-50x speedup over interp2 (approximation, interpolation, fast)

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updated almost 4 years ago

Speech Spectrogram by Kamil Wojcicki

High quality speech spectrogram plot generation routine (spectrogram, plot, image)

myspectrogram(s, fs, T, w, nfft, Slim, alpha, cmap, cbar,...

test_myspectrogram.m

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updated 4 years ago

GAFFE A toolbox for solving evolutionary nonlinear PDEs by Edward Grace

This toolbox implements the well known split-step Fourier technique for solving nonlinear PDEs. (pde, fft, nonlinear)

B=fftnpad(A,varargin)

DefaultDiffraction(dz,KX,X,u,U)

DefaultDiffractionFibich(dz,KX,X,u,U)

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updated 2 years ago

3D histogram of RGB image by Pavel Rajmic

Creates 3D-histogram from an RGB image in the form of balls within the RGB cube (rgb, image, histogram)

image_hist_RGB_3d(imname,n,gamma)

rgb_noise_image(rows,cols,filename)

demo_image_hist_RGB_3d.m

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updated 3 years ago

2-D convolution using the FFT by David Young

Convolution in 2-D using the Fast Fourier Transform. (convolution, filtering, fft)

conv_fft2(x, m, shape)

exindex(arr, varargin)

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updated 1 month ago

Wavelet based Image Reconstruction from Gradient Data by E

A toolbox for reconstructing images from gradient data. (image processing, gradient, poisson solver)

Reflect.m

Ad_GWN(X,targetSNR,st)

CombineRGB(R,G,B)

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updated 2 years ago

N Dimensional Cardinal Spline (Catmull-Rom) Spline Interpolation by Dr. Murtaza Khan

N -Dimensional cubic Cardinal spline (Catmull-Rom) Interpolation (approximation, interpolation, cardinal spline)

[MatNbyNPlusOne]=crdatnplusoneval(P0,P1,P2,P3,T,n)

[Pu] =evalcrdnd(P0,P1,P2,P3,T,u)

main.m

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updated 2 years ago

Contour Line Smoothing by Duane Hanselman

Smooths contour lines by fitting them with a 2-D spline. (interpolation, data exploration, graphics)

[cout,h]=contourspline(varargin)

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updated 10 years ago

smooth2 by Kelly Hilands

Smooths the data in a 2D matrix with a user-defined resolution. (approximation, interpolation, 2d)

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updated almost 9 years ago

Akima Interpolation by N. Shamsundar

Interpolate smooth curve through given points on a plane. (specialized, plotting, fit)

yi=akimai(x,y,xi)

AkimaTst.m

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updated 1 month ago

Generate Random Numbers from a 2D Discrete Distribution by Tristan Ursell

Random numbers from any 2D discrete probability distribution, at any resolution. (discrete, distribution, generate)

[x0,y0]=pinky(Xin,Yin,dist_in,varargin)

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updated 5 years ago

vebyk by Rolf Sidler

vebyk performs ordinary kriging and can be easily adapted to other kriging methods. (approximation, interpolation, kriging)

buildbigc3(position,anisotropy,nu,range)

buildsmallc3(position,anisotropy,nu,range)

covcalc(lag,nu,a)

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updated 3 years ago

mask2poly by Nikolay S.

Finds a polygon enclosing the user defined mask. Inverse of poly2mask :). (contour, roi, mask)

[xCW,yCW]=sortPoint2ContourCW(x,y)

[xDistSort,yDistSort]=sortPointMinDist(x,y)

poly=mask2poly(mask,countourType,sortPointsMethod)

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updated 5 years ago

imagescnan.m v2.1 (Aug 2009) by Carlos Adrian Vargas Aguilera

Same as IMAGESC but ignores NaNs. (specialized, plotting, imagesc)

imagescnan(varargin)

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updated 1 year ago

The carpetplot class by Matthias

Create carpet plots and cheater plots easily (plotting, carpet, carpet plot)

Carpetplot Class Example Plots

arrow(varargin)

h=hatchedline(xc,yc,linespec,theta,ar,spc,len,varargin)

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updated almost 4 years ago

Minimum Entropy Deconvolution (MED 1D and 2D) by Geoff McDonald

Generates a 1D FIR filter iteratively to minimize the entropy of the filtered signal(s). (minimum entropy decon..., maximum entropy decon..., med)

med2d.m

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updated 3 years ago

Shaded time series by Carl Fischer

Plot time series one above the other with coloured strips highlighting interesting features. (annotation, customization, highlight)

shadedTimeSeries(X, Ydata, indicator, Xlabel, Ylabels, co...

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updated 1 year ago

Normalized Coordinates for Annotations by Abraham Asfaw

This function returns normalized coordinates in plot, semilogx, semilogy and loglog plots. (loglog, semilogx, semilogy)

normalize_coordinate(x_point_, y_point_, axes, xlims_, yl...

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updated 2 years ago

Spectrogram, STFT, with varied kinds of Plots by Shreyes

Plots STFT using line, Stem, Surface, Image. STFT calculation done using in built function (mathematics, statistics, signal processing)

spectrogram_multiplot(plot_type, data, varargin)

spectrogram_multiplot_demo.m

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updated almost 4 years ago

SigPlot by Yannis Agiomyrgiannakis

An advanced interface for 1-D signal visualization & editing. (visualization, plotting, signal processing)

ConstructWindow(WindowType, n, winopt)

ParamEditor(param)

VectorDataPlot_MappingFunction_AR(vector_data_plot_panel,...

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updated 3 years ago

Quick Structured Mesh Generator by Tolga Birdal

Fast generation of structured meshes given the vertices (MEX!). Interpolation/resizing of the mesh. (structured mesh, depth map, point cloud)

[]=make_mesh_structured()

drawMesh(vertex, face, varargin)

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updated 5 years ago

Interpolation for missing data by Prakash Manandhar

Interpolates using nearest neighbor, bilinear or bicubic formula for missing data points (interpolation, nearest neighbor, 2d)

bicinter(x, y, z, x0, y0)

findnearest (x, y, z, x0, y0, N)

lininter(x, y, z, x0, y0)

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updated almost 3 years ago

Graphic depiction of timelines by Kevin Bartlett

Makes horizontal timeline plot. Timelines can start and stop either once or multiple times. (time, graphics, plot)

timeline(lineNames,startTimes,endTimes,varargin)

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updated almost 13 years ago

FFT Plot by Bill Higley

A quick-and-dirty FFT Plot (specialized, plotting, fft)

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updated 2 years ago

Explore Experimental Data by Alexander Ludwig Klein

The tool makes some of MATLAB's plotting and analysing functions available by a GUI (gui, plotting, signal processing)

dataExpDemo1()

dataExpDemo2()

dataFilterStandard(x, y, Fc)

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updated almost 8 years ago

tinterp - an alternative to griddata by Darren Engwirda

Linear and quadratic interpolation for scattered data (approximation, interpolation, scattered interpolati...)

tester

tinterp(p,t,f,xi,yi,method)

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updated 6 years ago

Sound Card Spectral Analyser GUI by Rodney Thomson

Acquire data from soundcard and plot in time and frequency domains (example, application, fft)

SoundcardSpectralAnalyser_GUI(varargin)

SoundcardSpectralAnalyser(time_plot, freq_plot, varargin)

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updated 3 years ago

Surface2VTK by James Ramm

Interpolates scattered data and saves the result to a vtk file. (vtk, surface, surf)

fillElevation(Elev,ncellX,ncellY,nlayer,nR)

meanRes(R,ncellY,ncellX,nlayer)

surface2vtk(x,y,z,r,vtkname)

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updated 10 years ago

Walsh Transform(2D) by Ahmad Poursaberi

The function implements the 2D Walash Transform. (transforms, walsh transform, 2d)

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updated 6 years ago

Plot Intensity on Sphere by David Johnstone

Plot intensity (color) for given points on a sphere. (specialized, plotting, plot)

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updated almost 4 years ago

DifferenceChart Demo by Sven Koerner

Demonstration of DifferenceChart in TimeSeries. Uses JFreeChart and Matlab (time, timeseries, plot)

differencechart_demo.m

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updated 2 months ago

Frequency time graph. by Youssef KHMOU

Three dimensional graph to represent one dimensional sine waves (frequency, time, sine wave)

U=ftrep(f)

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updated almost 10 years ago

Virtual Signal Lab by walid shehata

It is a virtual signal lab on the builtin MATLAB sounds. (audio processing, video processing, signal lab)

virtualsignallab(varargin)

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updated almost 4 years ago

Dialplot Demo by Sven Koerner

Dial example of using JFreeChart and Matlab functionality within Matlab. (java, dial, time)

dialdemo.m

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updated 2 years ago

Capture screen image Tektronix 2024B by Roman Skrada

Function will get data of channels that are ON and plots them. (measurement, signal processing, gui)

get_scope_screen( )

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updated 1 year ago

Blend Color by Giacomo Alessandroni

BLENDCOLOR - Blend two colours specifying the fractional position (color, interpolation, image processing)

blendcolor(from, to, pos)

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updated 3 months ago

Digital Image Processing Unit - 02.pdf by MANISH KUMAR SHARMA

spatial filtering (image processing, signal processing, computer vision)

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updated almost 9 years ago

rtc: a pedestrian real-time clock figure by us

creates a versatilely configurable real-time clock in a figure (clock, fun, realtime)

opar=rtc(id,npar)

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updated 11 years ago

FastFFT Function by Rick Auch

A function to calculate frequency amplitudes, optionally makes Bode plots. (filter design, filter analysis, fft)

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updated 6 years ago

fseriedemo by Matt Fig

Calculates and plots the Fourier Series Approximation to function f. (fourier, series, plot)

fseriesdemo(f,b,NN)

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updated 6 years ago

Sound Card Spectral Analysis by Rodney Thomson

Acquire data from soundcard and plot in time and frequency domains (example, application, fft)

soundcardSpectralAnalysis(Fs, n_bits, n_channels, update_...

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updated 2 years ago

Matrix Convolution with Sub-Pixel Resolution by Tristan Ursell

Convolve two matrices at sub-pixel resolution, using bilinear interpolation. (matrix, convolve, convolution)

matout=matoverlay(mat1,mat2,x,y)

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updated 5 years ago

plotColumns.m: plots columns in matrix as time series by Joshua Carmichael

Plots matrix columns w/options (plotting, signal processing, annotating graphs)

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updated 3 years ago

Convolve/ Deconvolve Gaussian impulse response and unit impulse vectors by Bruce Raine

This function demonstrates how to convolve and deconvolve data as well as plots it and returns it. (filter, plot, signal processing)

plotImpulses(inFile)

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updated 7 years ago

Graphical Points Selection by Thomas Montagnon

A graphical selection of points where you want to apply specific treatment (data exploration, plot, selection)

sample_select_data()

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