image thumbnail

updated 17 days ago

RViewer by Tony Davis

Image Viewer with Interpolation on Zoom, Multiple Sync (image, display, interpolation)

image thumbnail

updated 11 months 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)

image thumbnail

updated 12 months ago

Blend Color by Giacomo Alessandroni

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

blendcolor(from, to, pos)

image thumbnail

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...

image thumbnail

updated 1 year ago

Add Visible Line over Images (Modifed Version of the one in Doug's MATLAB Video Tutorials) by Anand P

This is a modified version of the one shared in Doug's MATLAB Video Tutorials (image processing, signal processing, data export)

cursorLine(x,y,innerThickness, outerThickness)

image thumbnail

updated almost 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

image thumbnail

updated almost 2 years ago

Draw lines with arrows by Sabesan

Draw lines with arrows. Multiple optional parameters are given for controlling the arrow and line (draw lines, plot, figure)

draw_line2(p1, p2, varargin)

image thumbnail

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

image thumbnail

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)

image thumbnail

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)

image thumbnail

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)

image thumbnail

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)

image thumbnail

updated 3 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

image thumbnail

updated 3 years ago

Matlab, Nyquist, Power system, Plots, Nyquist plot. by satendra kumar

To get a appropriate Nyquist plot. (nyquist, power system, plot)

lnyquist1(a,b,c,d,iu,w)

image thumbnail

updated 3 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

image thumbnail

updated 3 years ago

Track, Collect And Tar Inputs And Outputs by Michael Chan

Illustrates status tracking and collation of inputs and results. The package is tar'red for sending. (track, time, tar)

savefigs(imageResultRepository, imageFileType)

timeStampedFile( file, numberOfFileExtensions, secondsMod...

usageTar_unTarFiles.m

image thumbnail

updated 4 years ago

plot_cc by Lang Withers

Makes a plot to visualize a sequence of complex numbers directly, as a "complex cylinder.". (specialized, plotting, complex plots)

...

test_cc.m

image thumbnail

updated 4 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

image thumbnail

updated almost 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)

image thumbnail

updated almost 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)

image thumbnail

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)

image thumbnail

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)

smooth2a(matrixIn,Nr,Nc)

image thumbnail

updated almost 8 years ago

Least-Squares optimal affine subspace by Ofek Shilon

Computes the affine subspace (eg, line, plane) that optimally fits the input data (approximation, interpolation, least)

lsqAffineSpace(V, SpaceDim,varargin)

lsqLine(V,varargin)

lsqPlane(V,varargin)

image thumbnail

updated 9 years ago

Fast retrieve line coordinates by Alejandro Sanchez-Crespo

Fast retrieve the (x,y) coordinates of a line, given the starting and ending points. (approximation, interpolation, 2d)

[x,y]=conect(Xstart,Xend,Ystart,Yend)

image thumbnail

updated 9 years ago

smooth2 by Kelly Hilands

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

smooth2.m

Contact us