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updated 11 days ago

Read and write multiplexed miniSEED file by 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 2 months ago

jpegls_encode.zip by Mitchell Grabner

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

jpegls_encode.m

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updated 3 months ago

Movie compressor by Dongyoung Kim

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

movieCompressor

movieCompressor(varargin)

smovieCompressor(moviePath,savePath,codecName,compRate)

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updated 5 months ago

Riemann Problem (Gas dynamics) by 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 6 months ago

H.264 Baseline Codec [reading and writing videos] by 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 6 months ago

Code for generating Haar matrix by Kamlesh Pawar

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

[Hr]=generate_haar(N)

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updated 7 months ago

Lempel-Ziv Algorithm by Mehedi

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

LempZiv(data)

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updated 8 months ago

An Investigation of Dehazing Effects on Image and Video Coding by 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 10 months ago

Image Enhancer by 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 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

Compression (shannon fano) by John Diaz

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

codificacion(varargin)

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updated 1 year ago

Byte encoding utilities by 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 1 year ago

Speech Processing Toolbox by 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 1 year ago

MATLAB Implementation of Harmonic ANalysis of Time Series (HANTS) by 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 2 years ago

Wavelet Decomposition For Images by 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 2 years ago

Levenstein Coding by Marcos Bolanos

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

Levenstein.m

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updated almost 3 years ago

SPIHT by 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

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

abhiaztec.m

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updated 3 years ago

FAN ALGORITHIM by abhijith bailur

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

abhi_Fan_Algorithm.m

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updated 3 years ago

Example of Lempel Ziv coding by 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 3 years ago

Wavelets and fractals: where the 2 techniques meet by 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 3 years ago

Arithmetic code to encode a string of char. by 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 3 years ago

JPEG compression by 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 almost 4 years ago

Image processing laboratory by 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 almost 4 years ago

Quadtree decomposition (Encoding) and Decoding of RGB Image by 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 almost 4 years ago

Compression Routines by Jesse Hopkins

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

CompressLib

packableObject

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updated almost 4 years ago

jpeg encoder by karan anand

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

colorspace(Conversion,varargin)

jpegfulto.m

jpegfulto_old.m

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updated 4 years ago

Zig-Zag scan by 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 4 years ago

NIST (ANSI/NIST-ITL 1-2000) library (for Windows) by 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 4 years ago

SparsePack by 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 almost 5 years ago

A Numerical Tour of Signal Processing by 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

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 5 years ago

Fast Import of Compressed Binary .RAW Files Created with LTspice Circuit Simulator by 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 5 years ago

Samplify Sampled Data Compression by 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 5 years ago

Scalable MPEG compression based on DCT coefficients by 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

Rudimental compression algorithms for 2D matlab plots by Francesco Pozzi

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 6 years ago

Image Compression using Wavelet by Jebakumari Beulah

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

wavecompression.m

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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)

CODE.m

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updated 6 years ago

Adaptive Huffman Coding by Matt Clarkson

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

adaptivehuffman(stream,type)

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updated 6 years ago

Visualization of Huffman Encoding Trees by 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 6 years ago

image compression using run length ecoding by Shoeb Temrikar

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

rlemain.m

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updated 6 years ago

EZW (Embedded Zerotree Wavelet) by 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 6 years ago

mpeg compression by 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 6 years ago

Prediction with Partial Match (PPM) by Min Kyeong Lee

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

ppm.m

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updated 6 years ago

LZW encoder/decoder by Claudiu Giurumescu

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

Example.m

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updated almost 7 years ago

WSQ image library (for fingerprints) v.2.8 by 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 almost 7 years ago

Wavelet based image compression using segmentation by 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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updated 7 years ago

2-D DCT/IDCT for JPEG Compression by Ahmed Samieh

Fast Implementation of 8X8 DCT/IDCT for JPEG Compression (compression, 2d dct, idct)

DCT_8X8(I)

IDCT_8X8(I)

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updated 7 years ago

JPEG Encoder Decoder by Muhammad Anwarul Azim

image encode/decode using DCT, quantization, zigzag reordering & run-level coding of JPEG standard (compression, thank, jpeg encode decode)

jpeg

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updated 7 years ago

Another LZW compression algorithm by Haiyong Xu

Simple LZW algorithm implementation. (compression, lzw compression, algorithm)

norm2lzw(vector)

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