Image Noise Reduction by Local Statistics by Tristan Ursell

Reduce image noise by measuring local pixel statistics and remapping intensities. (relative, deviation, statistics)

[varargout]=relnoise(Iin,sz,sigma,varargin)

Random Search Algorithm by Reza Ahmadzadeh

Random search belongs to the fields of Stochastic Optimization and Global Optimization. (optimization, algorithm, global)

RSA.m

RSA_visual.m

1D Non-derivative Peak Finder by Tristan Ursell

Up-sample and filter noisy data to find peaks without using derivatives. (extrema, min, local)

varargout =peakfind(x_data,y_data,varargin)

Simulated Annealing Optimization by Héctor Corte

This program performs simulated annealing otimization on functions of R^n in R. (annealing, physics, simulation)

sim_anl.m

PeakFinder by Nate Yoder

Quickly finds local maxima (peaks) or minima (valleys) in a noisy signal. (peak finder, chemistry, extrema)

peakfinder(x0, sel, thresh, extrema)

Local Peaks by Christopher Hummersone

Find local peaks or troughs in a vector (local, peaks, troughs)

localpeaks(x,mode)

Peaks picking by Christos Saragiotis

Finds peaks or troughs in a vector o 2-D matrix. (data exploration, statistics, general tools)

pickpeaks(X,npts,dim,mode)

Derivative-based Optimization by Nassim Khaled

Derivative-based Optimization using The Gradient Descent (3d, derivative, minimum)

Gradient_Descent_maximum.m

Gradient_Descent_minimum.m

OpenOpt by Dmitrey Kroshko

nonSmoothSolve (similar to fsolve), non-smooth & noisy local + some global solvers; works in Octave (optimization, octave, global)

GAconstrain(prob)

GHilbert(x)

GLemarechal(x)

Global to Local Coordinate Transformation Matrix by Paulo J. Paupitz Goncalves

T = trans_matrix_beam3d(x0,y0,z0,x1,y1,z1,alpha) (transformation, coordinate, global)

trans_matrix_beam3d(varargin)

cumulative local histogram to drive level set evolution by Yuanquan Wang

calculate the local cumulative histogram for level set (histogram, image analysis, local)

histgramTest(action,varargin)

Local Linear Kernel Regression by Yi Cao

A function to provide local linear estimator of Gaussian kernel regression (local, kernel regression, kernel smoothing)

r=ksrlin(x,y,h,N)

Image Tiling by Yasser Arafat

can be used for CBIR (morphology, segmentation, image tiling image bl...)

ImgYContainer=YTiler(NHBlocks,NVBlocks,typeOfImages)

YDemo__Tiler.m

Akima Interpolation by N. Shamsundar

Interpolate smooth curve through given points on a plane. (akima, spline, fit)

yi=akimai(x,y,xi)

AkimaTst.m

inc by Jeffrey Johnson

Increments variable in local workspace. (increment, local, simplify)

inc(myvar,incval)