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updated 20 days ago

Rudimental compression algorithms for 2D matlab plots by Liber Eleutherios

Liber Eleutherios

Rudimental compression algorithms for 2D matlab plots (make eps images small for your LaTeX docs!) (compression, resolution, plot)

compress2D(x, y, width, height, alpha)

compress2Dh(x, y, width, height, alpha)

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updated 1 month ago

Condensation of earthquake location distributions: Optimal spatial information encoding by Yavor Kamer

Yavor Kamer

Reduces the size of a catalog by taking into the account individual location uncertainties (seismicity, spatial analysis, optimization)

catCondens(org_cat,cov_mat,DO_PLOT)

gaussianValue(X, m, covar)

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updated 3 months ago

JPEG-based computing by Boris

Boris

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

entropy_cod( input_matrix, n)

get_quantization( q )

huffman_cod( input_matrix)

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updated 3 months ago

Apps and models for teaching numerical sciences and computer science by Emilie Delaherche

Emilie Delaherche

Interactive apps and Simulink models for numerical sciences and computer science (data types, audio acquisition, communications)

Data Type Conversion

Graph Traverse

JPEG Compression

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updated 6 months ago

Movie compressor by Dongyoung Kim

Dongyoung Kim

A simple gui program to compress a movie (movie, movie compression, compression)

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updated 6 months ago

Image compression using Block Truncation Coding by Arun Kumar

Arun Kumar

Block Truncation Coding is a type of lossy image compression technique (block truncation codi..., image compression, image processing)

btcnew.m

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updated 7 months ago

Read and write multiplexed miniSEED file by Fran├žois Beauducel

Fran├žois Beauducel

Imports and exports data files in seismological format "mini-SEED" (geophysics, seismology, data import)

mkmseed.m

rdmseed.m

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updated 9 months ago

jpegls_encode.zip by Mitchell Grabner

Mitchell Grabner

Basic JPEG-LS (LOCO-I) Encoder (image processing, compression)

jpegls_encode.m

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updated 11 months ago

Riemann Problem (Gas dynamics) by Ennio Condoleo

Ennio Condoleo

Riemann and Godunov problems (at the first step) with initial conditions piecewise constant (godunov, riemann, gas dynamics)

Riemann_Problem.m

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updated 1 year ago

H.264 Baseline Codec [reading and writing videos] by Khalfan Almarashda

Khalfan Almarashda

This codes are based on H.264 Baseline Codec done by Dr. Abdullah Al Muhit (avc, h264, exp golomb)

A01Play(mov,Obj)

A01Read(Input,NumberOfFrames)

A01Resize(mov,Frame_start,Frame_end,Width,Height)

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updated 1 year ago

Code for generating Haar matrix by Kamlesh Pawar

Kamlesh Pawar

Code for generating Haar matrix (signal processing, image processing, coding theory)

[Hr]=generate_haar(N)

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updated 1 year ago

Lempel-Ziv Algorithm by Mehedi

Mehedi

Lempel-Ziv Data Compression is Programmed (lempelziv, lempel ziv, compression)

LempZiv(data)

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updated 1 year ago

An Investigation of Dehazing Effects on Image and Video Coding by Anand g

Anand g

An investigation of Dehazing Effects. This will be implemented in MATLAB GUI using DCP (dark channel priority..., median dark channel p..., dehazing)

[decibels_graph decibels]=PSNR(A,B)

[decibels_graph decibels]=PSNR(A,B)

[decibels_graph decibels]=PSNR(A,B)

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updated 1 year ago

Image Enhancer by Pol

Pol

A simple GUI image editing application which is able to compress images and apply effects to them. (image processing, gui, image editing)

IEcontrast(varargin)

IEcrop(varargin)

IEeffects(varargin)

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updated 2 years ago

Compression (shannon fano) by John Diaz

John Diaz

Compression (shannon fano) gui (communications, demo, gui)

codificacion(varargin)

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updated 2 years ago

Byte encoding utilities by Kota Yamaguchi

Kota Yamaguchi

Matlab utilities to encode/decode Base64 string and GZIP bytes. (data import, encode, base64)

base64decode(input)

base64encode(input)

gzipdecode(input)

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updated 2 years ago

Speech Processing Toolbox by Ankitkumar Chheda

Ankitkumar Chheda

Speech Processing Operation like FADE-IN, FADE-OUT, COMPRESSION AND AMPLIFICATION (fade in, fade out, amplification)

GUI_exp4_new(varargin)

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updated 2 years ago

MATLAB Implementation of Harmonic ANalysis of Time Series (HANTS) by Mohammad Abouali

Mohammad Abouali

Harmonic ANalysis of Time Series (HANTS) (harmonic analysis, time series, compression)

[Data]=ReconstructImage(amp,phi,nb)

[amp,phi,yr]=HANTS(ni,nb,nf,y,ts,HiLo,low,high,fet,dod,de...

[yOut, amp, phi]=ApplyHants(y,nb,nf,fet,dod,HiLo,low,high...

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updated almost 3 years ago

Wavelet Decomposition For Images by Michael Chan

Michael Chan

The demo decouples the wavelet operations from the plotting. (wavelet, image processing, multiresolution)

PSNR(A,B)

displayResultantWaveletImages(A, H, V, D, levelOfDecompos...

observeWaveletDecompositionBenchmark_N_levels.m

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updated 3 years ago

Levenstein Coding by Marcos Bolanos

Marcos Bolanos

This code implements the Levenstein universal coding method. (information theory, channel coding, levenstein)

Levenstein.m

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updated 3 years ago

SPIHT by Kanchi

Kanchi

SPIHT matlab code (without Arithmatic coding stage) (compression, spiht wavelet image c..., ccsds)

func_DWT(I, level, Lo_D, Hi_D);

func_InvDWT(I_W, S, Lo_R, Hi_R, level);

func_MyDescendant(i, j, type, m)

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updated 3 years ago

aztec algorithim by abhijith bailur

abhijith bailur

compression of ecg using aztec (compression, aztec, ecg)

abhiaztec.m

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updated 3 years ago

FAN ALGORITHIM by abhijith bailur

abhijith bailur

commpression of ECG using FAn algorithim (ecg, compression, fan algorithim)

abhi_Fan_Algorithm.m

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updated 4 years ago

Example of Lempel Ziv coding by Andrea Cirillo

Andrea Cirillo

It's a Matlab function to codify a string of chars with Lempel-Ziv compression algorithm. (communications, signal processing, compression)

lempel_ziv(alfabeto, stringa)

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updated 4 years ago

Wavelets and fractals: where the 2 techniques meet by Alexey Borovoy

Alexey Borovoy

In this submission a unique position of Haar wavelet in image processing is revealed. (haar, wavelet, fractal)

compare(N)

hwdt(x)

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updated 4 years ago

Arithmetic code to encode a string of char. by Andrea Cirillo

Andrea Cirillo

Arithmetic code to encode a string of char. (signal processing, coding, compression)

res=arithmetic_code(alphabet, distr_pr, string)

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updated 4 years ago

JPEG compression by Anna DB

Anna DB

A program in order to see how the JPEG method works. (image processing, signal processing, cosine transform)

compressione.m

compressione_help(varargin)

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updated 4 years ago

Image processing laboratory by Francesco Pizzo

Francesco Pizzo

An application with an intuitive GUI that you can use for some image processing exercises. (communications, gui, image processing)

compression(varargin)

compression_type.m

equalizza.m

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updated 4 years ago

Quadtree decomposition (Encoding) and Decoding of RGB Image by Dr. Murtaza Khan

Dr. Murtaza Khan

Quadtree decomposition (Encoding) and Decoding of RGB Image of size M-by-N-by-3. (image analysis, quadtree, image)

A =padtomakepowof2(A,varargin)

I=qtreedecode(S,values)

I=qtreergbdecode(S,valRGB)

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updated 4 years ago

Compression Routines by Jesse Hopkins

Jesse Hopkins

Compress Matlab variables in the workspace. (supports cells, structs, matrices, strings, objects) (compression java, compression)

CompressLib

packableObject

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updated 4 years ago

jpeg encoder by karan anand

karan anand

yup this creates a jpeg file (compression, jpeg, codec)

colorspace(Conversion,varargin)

jpegfulto.m

jpegfulto_old.m

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updated almost 5 years ago

Zig-Zag scan by Damilola Ogunbiyi

Damilola Ogunbiyi

Zig-zag and inverse zig-zag scan as used in Image Processing's JPEG compression. (zig zag, zigzag, scan)

out=invzigzag(in,num_rows,num_cols)

out=zigzag(in)

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updated almost 5 years ago

NIST (ANSI/NIST-ITL 1-2000) library (for Windows) by Cognaxon Software

Cognaxon Software

Read and writes files in ANSI/NIST-ITL 1-2000 format. (ansinistitl 12000, ansinistitl 12007, wsq)

nist_demo_Create_and_Insert.m

nist_demo_Delete_Single_Field.m

nist_demo_Read_Single_Field.m

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updated 5 years ago

SparsePack by Sebastiaan

Sebastiaan

Packs a sparse matrix into a single uint8 array, reducing memory usage. (sparse, compression)

testSparsePack(NumTests, MemLim, Fake32)

SparsePack.m

SparseUnPack.m

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updated 5 years ago

A Numerical Tour of Signal Processing by Gabriel Peyre

Gabriel Peyre

A set of Matlab experiments that illustrates advanced computational signal and image processing. (time frequency, wavelets, tutorial)

[p,ellipse]=phantom(varargin)

b=dct(a,n)

b=dct2(arg1,mrows,ncols)

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updated 5 years ago

Fast function to save a matrix by Arvid Bottiger

Arvid Bottiger

write_matrix_bin(f,m) is a fats way to save a matrix of arbitrary size and dimension. (optimization, data, export)

read_matrix_bin( filename, varargin )

write_matrix_bin( filename, matrix, varargin )

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updated almost 6 years ago

Fast Import of Compressed Binary .RAW Files Created with LTspice Circuit Simulator by Paul Wagner

Paul Wagner

Loads .raw simulation files created with LTspice (a free circuit simulation tool). (ltspice, spice, circuit simulation)

LTspice2Matlab( filename, varargin )

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updated 6 years ago

Samplify Sampled Data Compression by Al Wegener

Al Wegener

Samplify compresses samples used by A/D and D/A converters (dsp, compression, compress)

block_info(N)

delimiter(idelim)

desamplify(x, opt)

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updated 6 years ago

Scalable MPEG compression based on DCT coefficients by Zahid Ali

Zahid Ali

This application makes 2 layers base Layer and enhancement layer from quantized coefficients (compression, scalable mpeg, layers)

BmotionEstARPS(imgP, imgI, mbSize, p)

BmotionEstARPS(imgP, imgI, mbSize, p)

BmotionEstARPS(imgP, imgI, mbSize, p)

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updated 6 years ago

Image Compression using Wavelet by Jebakumari Beulah

Jebakumari Beulah

This code compress the image using wavelets. Both gray scale and RGB images can be applied and some (compression, wavelet, code)

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updated 6 years ago

WAVELET BASED IMAGE COMPRESSION AND SUB-BAND CODING by Krishna Mohan chowdary Adusumilli

Wavelets are used both in compression and coding (compression, image compression, subband coding)

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updated 6 years ago

Adaptive Huffman Coding by Matt Clarkson

Matt Clarkson

Adaptive Huffman Encoding/Decoding for 1D arrays of 8 or 16bit unsigned integers (compression, adaptive huffman codi...)

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updated 6 years ago

Visualization of Huffman Encoding Trees by Jason Agron

Jason Agron

Simple program that builds and visualizes a huffman encoding tree for a user-defined string (compression, huffman, encoding)

Huffman Encoding Example

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updated almost 7 years ago

image compression using run length ecoding by Shoeb Temrikar

Shoeb Temrikar

rle application to image compression (compression, rle application, image compression)

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updated almost 7 years ago

EZW (Embedded Zerotree Wavelet) by Kanchi

Kanchi

Matlab implementation of EZW (Embedded Zerotree Wavelet) (compression, ezw, embedded zerotree)

func_DWT(I, level, Lo_D, Hi_D);

func_InvDWT(I_W, S, Lo_R, Hi_R, level);

func_Myappcoef2(c,s,varargin)

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updated almost 7 years ago

mpeg compression by Zahid Ali

Zahid Ali

Mpeg compression (compression, mpeg compression, mpeg2)

BmotionEstARPS(imgP, imgI, mbSize, p)

BmotionEstARPS(imgP, imgI, mbSize, p)

BmotionEstDS(imgP, imgI, mbSize, p)

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updated almost 7 years ago

Prediction with Partial Match (PPM) by Min Kyeong Lee

Min Kyeong Lee

The context-based compression (compression, ppm, prediction with parti...)

ppm.m

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updated almost 7 years ago

LZW encoder/decoder by Claudiu Giurumescu

Claudiu Giurumescu

Implements a TIF compatible LZW encoding/decoding algorithm (compression, lzw, encoder)

Example.m

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updated 7 years ago

WSQ image library (for fingerprints) v.2.8 by Cognaxon Software

Cognaxon Software

Reads and converts WSQ (FBI's Wavelet Scalar Quantization) and 31 other formats. (compression, wsq, wavelet scalar quanti...)

wsq_demo.m

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updated 7 years ago

Wavelet based image compression using segmentation by THAYAMMAL SUBBURAJ

THAYAMMAL SUBBURAJ

The optimal wavelet function in wavelet based image compression system was examined using different (compression, image compression, wavelet)

Bior11.m

Bior11.m

Bior11.m

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