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updated 8 months ago

LetItSnow by Richard Moore

Your office has no window. You want to see ridiculously large snowflakes. I've solved your problem (snow, snowflakes)

LetItSnow

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updated 8 months ago

Hysteresis thresholding for 3D images (or 2D) by Luke Xie

Segments images based dual thresholding with 2D or 3D connectivity neighborhoods. (image processing, hysteresis, 3d)

[tri,hys]=hysteresis3d(img,t1,t2,conn)

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updated 8 months ago

Two-dimensional trilateral filter by Pekka Astola

Filters a grayscale image with the trilateral filter by P. Choudhury and J. Tumblin (trilateral filter, bilateral filter, filtering)

BilateralGradientFilter(...

DetailBilateralFilter(inputImage,adaptiveRegion,...

buildMinMaxImageStack(gradientMagnitude,maxLevel)

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updated 9 months ago

Bubble Sliding and Lift-off Analysis by Danyal Mohaddes Khorassani

Calculation of various bubble parameters during horizontal subcooled boiling flow (heat mass, thermodynamics, bubble dynamics)

analyse_bubbles(fileFolder,analysisType)

analyse_case(fileName,analysisType,pin,fps)

bubbles(varargin)

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updated 9 months ago

How to apply Image Processing and Computer Vision wih MATLAB : Japanese MATLAB EXPO 2013 by Masa Otobe

Script used in MATLAB EXPO 2013 in Japan on Oct. 29, 2013 (matlab expo 2013, demo, image processing)

my_util_skeletonViewer(viewer, skeleton, image, nSkeleton)

Segmentation_Watershed.m

blob_EXPO2013.m

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updated 9 months ago

Visualisation/verification of two-view geometries by Karel Lebeda

GUI tool to visualise homography, epipolar geometry, etc., to verify their accuracy. (homography, epipolar geometry, twoview geometries)

epipolarLine( F, x )

epipolarLineT( F, x )

geomVerif(varargin)

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updated 9 months ago

Opposite Color Local Binary Patterns (OC-LBP) by Nikolay S.

Implementation of LBP (Texture analysis) incorporating colors (lbp, image processing, feature detection)

efficientLBP(inImg, filtDims, isEfficent)

oppositeColorLBP(inImg, filtDims, chnsComb, isEfficient)

snailMatIndex.m

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updated 9 months ago

Mummy Dual-Energy CT Analysis by Saul

Analysis code to enable separation of up to 3 materials using dual-energy CT data. (computed tomography, ct, dual energy)

getmaterial(Im1,Im2,CT1,CT2)

mummyDE.m

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updated 9 months ago

Subpixel Motion Estimation without Interpolation by Stanley Chan

A block matching motion estimation algorithm that achieves subpixel accuracy without interpolation (motion estimation, block matching, optical flow)

Bidirectional_ME(img0, img1, opts)

FullSearch(Block, img_ref, xc, yc, SearchLimit)

LogSearch(Block, img_ref, xc, yc, SearchLimit)

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updated 9 months ago

Image Registration App by Brett Shoelson

UI environment for registering a Moving image to a Fixed image (image, registration, gui)

ImageRegistrationApp.m

distributeObjects(nobjects,startpos,endpos,gap,warnoff)

expandAxes(hndls,rotEnable)

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updated 10 months ago

Fast mutual information, joint entropy, and joint histogram calculation for N-D images by ja

Built for 'highest possible' speed. Can handle any number of dimensions, given sufficient memory. (joint histogram, joint entropy, nd)

ent(J,K)

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updated 10 months ago

Image fusion based on pixel significance using cross bilateral filter by Shreyamsha Kumar B. K.

Fuses multifoucs and multispectral images by weighted average using the weights computed from CBF. (image fusion, pixel significance, multifocus)

[QABF,LABF,NABF,NABF1]=objective_fusion_perform_fn(xrcw,x)

[gv gh]=sobel_fn(x)

[hist_out]=imhist_fn(x)

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updated 10 months ago

ROI selection for saliency maps by Bharath Ramesh

Region-of-interest selection for saliency maps (saliency detection, opening by reconstruc..., roi detection)

ROI_saliency_map(I)

rescale(x,a,b)

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updated 10 months ago

deconvtv - fast algorithm for total variation deconvolution by Stanley Chan

Fast numerical solver for total variation regularized least-squares deconvolution problems. (deconvolution, denoise, deblur)

deconvtv(g, H, mu, opts)

deconvtvl1(g, H, mu, opts)

deconvtvl2(g, H, mu, opts)

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updated 11 months ago

Autoscaleit by David Harris-Birtill

Automatically analyse TEM images providing histograms of length, width & aspect ratio of rod objects (automatics image anal..., rod identification, rod sizing)

DM3Import.m

func_threshold(I)

txtprogressbar(fraction_done)

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updated 11 months ago

DirLOT Toolbox by Shogo Muramatsu

MATLAB class definitions for directional lapped orthogonal transforms (optimization, image processing, genlot)

...

...

...

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updated 11 months ago

Signal Dependent Noise Level Estimation by xinhao liu

This code will estimate the three parameters of signal dependent noise model. (signal dependent nois..., noise variance, noise estimation)

GSGNoiseModel(sigw, sigu, gamma,X)

SGDNoiseLevel(img,patchsize,conf,itr)

addSGDNoise(X, sigw, sigu, gamma )

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updated 12 months ago

bigTiffWriter by Ashish Uthama

A basic image adapter to write Big TIFF files. (tiff, tif, bigtif)

bigTiffWriter

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updated 12 months ago

Improved Digital Image Correlation (DIC) by Elizabeth Jones

Calculate full-field displacements and strains from a set of images with a random speckle pattern. (digital image correla..., experimental mechanic..., noncontact)

...

...

...

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updated 12 months ago

Multifocus and multispectral image fusion based on pixel significance using DCHWT by Shreyamsha Kumar B. K.

Matlab code for multifocus & multispectral image fusion using DCHWT (image fusion, discrete cosine trans..., harmonic wavelets)

[C c]=dchwt_fn2(x,nlevel)

[QABF,LABF,NABF,NABF1]=objective_fusion_perform_fn(xrcw,x)

[gv gh]=sobel_fn(x)

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updated 12 months ago

Objective Fusion Performance Parameters & modified Fusion Artifacts measure by Shreyamsha Kumar B. K.

Computes the objective fusion performance parameters & modified fusion artifacts measure (image fusion, objective fusion perf..., modified fusion artif...)

[QABF,LABF,NABF,NABF1]=objective_fusion_perform_fn(xrcw,x)

[gv gh]=sobel_fn(x)

[xout_ext]=per_extn_im_fn(x,wsize)

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updated 12 months ago

1D / 3D LUT for Image Color Calibration by Christopher

This function applies a 1D or 3D LUT to an image for color gradient calibration. (image processing, 1d lut, 3d lut)

imlut(img, lut, kind, order)

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updated 1 year ago

MATLAB for C/C++ Programmers by Adam Filion

Files used in webinar MATLAB for C/C++ Programmers. (coder, compiler, engine)

bar(x)

displayLanes(frameRGB, laneVertices)

findlanes(bbox, Major, Minor)

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updated 1 year ago

Ellipse Detection Using 1D Hough Transform by Martin Simonovsky

An efficient ellipse detector based on Hough voting (ellipse hough fitting, ellipse detection)

ellipseDetection(img, params)

example.m

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updated 1 year ago

Multi-Scale Edge Detection by Shan

Multi-Scale Edge Detection with Gaussian and Laplacian Pyramids (edge detection, gaussian pyramid, laplacian pyramid)

[EdgeDecision, var]=funcVarianceMapMod(inputImage, row, c...

[varianceImg, timeTaken]=funcVarianceMap(inputImage, wind...

convolve(I, F, str)

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updated 1 year ago

imdisp (enhanced version) by Yi Sui

Display multiple images as a montage of subplots (image processing)

addRoiToolbar(fig)

draggable(h,varargin)

enableWL(hfig)

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updated 1 year ago

Add an ROI toolbar to your figure by Yi Sui

This function adds an ROI toolbar to your figure. (roi, image processing)

addRoiToolbar(fig)

draggable(h,varargin)

imdisp(I, varargin)

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updated 1 year ago

Bregman Cookbook by Jerome Gilles

This toolbox provides signal/image/3D processing based on Bregman Iterations (bregman, l1, sparse)

R=AddCurveletArray(A,B)

R=AddFrameletArray(A,B)

R=ShrinkComplexCurvelet(A,tau)

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updated 1 year ago

expandBW by Matthew

This function is used to expand the perimeter of a binary image by one pixel (bw, binary, expand)

expandBW(bw)

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updated 1 year ago

HybridVel by Pratik Chhatbar

Improved blood velocity measurements with a hybrid image filtering and iterative Radon transform (red blood cells, rbc, radon transform)

hybridvel(inputimg,showimg,saveimg,delx,delt,hi,lineskip,...

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updated 1 year ago

Stereoscopic Structural Distortion Metric (StSD) by Varuna De Silva

Low complexity objective measurement of compression artifacts in stereoscopic 3D video (video quality, 3d, stereoscopic video)

StSD_lc(distorted_left, reference_left, distorted_right,...

[Y,U,V]=yuv_import(filename,dims,numfrm,startfrm,yuvformat)

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updated 1 year ago

Subject and scan information from a DICOM header to ASCII file by Guilherme Coco Beltramini

Get some information from the DICOM header and write to an ASCII file (dicom)

dicom_get_info_from_header(dcm_files,file_name)

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updated 1 year ago

DTI gradient table by Guilherme Coco Beltramini

Generate the gradient table from a DTI DICOM file in scanner and in patient coordinates (dti, gradient table, dicom)

dti_grad_table(dcmhdr,Ngrad,corr_rot,out_folder)

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updated 1 year ago

DICOM to NIfTI converter by Guilherme Coco Beltramini

Simple DICOM to NIfTI converter. Gradient table for DTI files is also created. (dicom, nifti)

dicom2nifti(dcmfile,elim_grad,elim_slc)

dti_grad_table(dcmhdr,Ngrad,corr_rot,out_folder)

make_nii(varargin)

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updated 1 year ago

Light Field Toolbox v0.2 by Donald Dansereau

A set of tools for working with light field (aka plenoptic) imagery in Matlab (light field, plenoptic, lytro)

...

...

...

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updated 1 year ago

Algorithm Development with MATLAB by Sumit Tandon

Demo files to go with recorded webinar. (data import, gui, image processing)

BallDetectionGUI(varargin)

ImageGUI(varargin)

colorPlanesPlot(rPlane, gPlane, bPlane, justGreen)

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updated 1 year ago

Medical Image Processing Toolbox by Alberto Gomez

Classes and functions for N-dimensional medical image processing, inspired by ITK (image processing, data export, data import)

[img info]=read_mhd(filename)

circle3DMesh(c,r,d,varargin)

coneImage(points_axis, points_side, ref_im)

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updated 1 year ago

Fast morphological reconstruction of large logical masks. by Sven

MATLAB's imreconstruct is slow for large 3D logical masks. bwreconstruct is a faster replacement. (imreconstruct, bwselect, logical)

bwreconstruct(marker, mask, conn)

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updated 1 year ago

4D Volume Visualization by Joshua Stough

4D (3D+1) volume visualization with windowing, custom colormaps, and component selection (4d, vectorvalued volumetr..., visualization)

vis4d(I, mycmaps, figName)

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updated 1 year ago

apply2VideoFrames by Nikolay S.

Apply any image processing function applied to all frames of input video. (video, avi, processing)

assignin_value(name,value)

fileNamesList=filesListFromInput(inputsList, flagGUI, fil...

fileNamesList=folderFiles(foldersList, nFolderDepth, file...

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updated 1 year ago

K means clustering for Image Compression by Vinay Kumar Tadepalli

K-means clustering is a popular vector quantization method for data compression. (image processing, simulation, demo)

Kmeans_Pre_Post.m

kmeans_clustering.m

Image_kmeans_main.m

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updated 1 year ago

imshow3D (3D imshow) by Maysam Shahedi

imshow3D:(3D imshow) Displays 3D images slice by slice.Intensity adjusting & slice browsing by mouse (image processing, gui, 3d image viewer)

imshow3D( Img, disprange )

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updated 1 year ago

Enhanced Dicom Viewer by Yi Sui

A enhanced version of DICOMViewer (dicom, gui, image processing)

DICOMViewer(varargin)

dragdemo.m

draggable(h,varargin)

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updated 1 year ago

Speckle Noise Reduction in Ultrasound Images by Ashish Meshram (Meet)

This project implements various filters for Speckle Noise Reduction in Ultrasound Images. (image processing, wavelet, butterworth filter)

GetFilePath()

MetricsMeasurement.m

NSRFilters.m

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updated 1 year ago

Manual cell counter by Romesh

A GUI to make it easy to manually count cells (cell counting, image processing)

counter(varargin)

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updated 1 year ago

JPEG-based computing by Boris

This is a function to test a JPEG-based encoding/decoding algorithm (demo, image processing, compression)

entropy_cod( input_matrix, n)

get_quantization( q )

huffman_cod( input_matrix)

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updated 1 year ago

Face Recognition Software by Omid Sakhi

Face recognition software using Hidden Markov Models (HMM) and SVD features for education and study. (face recognition soft..., face recognition code, svm)

facerec(filename,myDatabase,minmax)

gendata()

getcam()

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updated 1 year ago

Mat2gray variant with dimension option by Jurgen

Normalizes sections of an N-D matrix divided along DIM to the 0.0-1.0 range. (image processing, mathematics, normalization)

dim2gray(A,DIM,LIMS)

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updated 1 year ago

Concatenate images/image files into a image mosaic by Nikolay S.

Concatenates image files into a single mosaic image in a manner similar to subplot (subplot, concat, image rocessing)

assignin_value(name,value)

fileNamesCell=filesListFromInput(filesDirsList, flagGUI, ...

outFile=concatImageFiles2D(varargin)

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updated 1 year ago

Self-Organizing Map - Simple demonstration by George Azzopardi

A simple and neat implementation of a self-organizing map algorithm (selforganizing map, som, neural networks)

SOMSimple(nfeatures, ndim, nepochs, ntrainingvectors, eta...

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