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updated 11 days ago

Resize N-D arrays and images by Damien Garcia

Y = RESIZE(X,newsize) resizes input array X using a discrete cosine transform. (dct, image processing, resizing)

resize(x,newsiz)

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updated 1 month ago

Interpolation Utilities by Joe Henning

A variety of interpolation utilities (interpolation, piecewise interpolati..., cubic interpolation)

baryinv(x, y, xi, c)

cakima(x, y, xi)

cbezier(x, y, xi)

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updated 5 months ago

Watermark DCT by Suraj Kamya

Watermarking in frequency domain using DCT (watermarking, dct, frequency domain)

[embimg,p]=wtmark(im,wt)

[wm]=exwmark(embimg)

wmark_enc(varargin)

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updated 6 months ago

DFT & DCT by Suraj Kamya

DFT and DCT without using inbuilt function for 1-D signal (dct, dft, dsp)

Xk=dft(xn)

[Xk] =dctu(xn)

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updated 7 months ago

Directional Discrete Cosine Transform by VPS Naidu

DDCT is demonstrated (dct, image processing ddct)

DDCT(im,mode)

IDDCT(IM,mode)

DDCT_demo.m

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updated 8 months ago

Quick & easy smoothing by Damien Garcia

Z = SMOOTH1Q(Y) smoothes data Y using a DCT- or FFT-based spline smoothing method (smoothing, robust smoothing, dct)

smooth1q.m

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updated 9 months ago

Multi-Focus Image Fusion in DCT Domain by Mohammad Haghighat

Simulation of two multifocus image fusion methods: 1.DCT+Variance 2.DCT+Variance+CV (image fusion, multifocus, dct domain)

dctVarFusion(im1, im2)

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updated 9 months ago

Multi-Focus Image Fusion for Visual Sensor Networks in DCT Domain by Mohammad Haghighat

Simulation of two multi-focus image fusion methods in DCT domain: 1.DCT+Variance 2.DCT+Variance+CV (book database, clock database, pepsi database)

dctVarFusion(im1, im2)

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updated 11 months ago

MatLab Solutions: "Introduction to Digital Signal Processing: A Computer Laboratory Textbook". by Ilias Konsoulas

These files are the MatLab solutions of exercises contained in the above DSP lab textbook. (dsp, digital signal proces..., discrete fourier tran...)

AD_DA(x,Xmin,Xmax,Levels)

conv_DHT(x,y)

conv_DHT2(x,h)

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updated 1 year ago

DirLOT Toolbox by Shogo Muramatsu

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

Quick Start of DirLOT Toolbox

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...

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updated 1 year ago

Watermarking GUI using 3rd level DWT by shivangi patel

The GUI embeds and extracts watermark image to cover image in frequency domain using 3rd level DWT. (watermarking, gui, 3rd level dwt)

MSE( pic1,pic2 )

PSNR( pic1,pic2 )

GUI.m

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updated 1 year ago

Watermarking GUI using DWT by shivangi patel

The GUI use to embed watermark image in cover image in frequency domain (dwt, idwt, watermarking)

MSE( pic1,pic2 )

PSNR( pic1,pic2 )

GUI.m

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updated 1 year ago

JPEG Baseline Encoder by Jorgenhoc

This baseline uses an encoding scheme based on the Discrete Cosine Transform (DCT). (jpeg, baseline, encoder)

huffman_ac(vector_zz)

huffman_dc(dc)

encoder_jpeg.m

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updated 1 year ago

DCT Laplacian Pyramid based Image Fusion by VPS Naidu

DCT Laplacian pyramid based image fusion matlab code is provided along with the paper. (image fusion, dct, laplacian pyramid)

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updated 2 years ago

DCT 8x8 Basis Functions by Daniel Bromand

DCT 8x8 Basis Functions (dct, basis functions, daniel)

DCT_8by8_Basis_Functions.m

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updated 2 years ago

PaReLab by danny yang

Pattern recognition lab, an image classification toolbox using Knn classifier and corss-validation. (image retrieval, image annotation, pattern recognition)

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AdaptUbm(UBM, x_tv, avoid_non_psd, max_iters, error_thres)

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updated 2 years ago

Discrete Cosine Transform based Image Fusion Techniques by VPS Naidu

six different DCT (Discrete Cosine Transform based image fusion techniques are presented (image fusion, discrete cosine trans..., dct)

DCTah(im1,im2,bs)

DCTav(im1,im2,bs)

DCTch(im1,im2,bs)

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updated 2 years ago

Split nD-array into equal sized cells by Matt J

Splits an array of any dimension into cell array of equal sized chunks. (blockproc, mat2cell, block)

outCell=mat2tiles(inArray,varargin)

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updated 3 years ago

DCT Co-Efficients Generator by Vittal

Generates the DCT coefficients of a given input data. (signal processing, image processing, dct)

generateDCT.m

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updated almost 4 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 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 4 years ago

Multidimensional Discrete Cosine Transform (DCT) by Andriy Myronenko

Fast forward and inverse Multidimensional Discrete Cosine Transforms (DCT, IDCT). (dct, idct, discrete cosine trans...)

mirt_dctn(a)

mirt_idctn(a)

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updated 5 years ago

Alaa Tharwat ToolBox by Alaa Tharwat

This toolBox used in the image processing(feature extraction and classification) (toolbox, image processing, pca)

K=normalizekernel(x,kernel,kerneloption,xsup);

T=phispan(x,phitype,dilation,uo,a,bord1,bord2,Family,par);

T=waveletspan(x,dilation,uo,a,leftbound,rightbound);

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updated almost 6 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 almost 8 years ago

DCT Implemetation using FFT. by Farhat Masood

Implementation of Discrete Cosine Transform using FFT. (audio processing, video processing, dct)

dct_farhat

x=f_fft(y,m)

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updated 10 years ago

Image Compression by Luigi Rosa

Demo source code for image compression. (compression, image compression, dct)

btcode (infile,bx,by,outfile)

conv2fft(z1,z2,shape,shape2)

convfft(z1,z2)

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updated almost 11 years ago

ECG Compression by Mehdi Nasri

This program uses 4 different Transform to compress an ECG signal : DCT ,DST,FFT ,DCT2 (dsp, dst, fft)

CompFinal.m

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