Quantization

This function is for training a codebook for vector quantization. The data set is split to two clusters, first, and the mean of each cluster is found (centroids). The disttance of each vector from these centroids is found and each vector is associated with a cluster. The mean of vectors of each...

Improved Gray Scale (IGS) codes are used for the elimination of false contouring in images, and image compression. This Python program generates the IGS codes for a set of input gray level values.

In this program, MSE, Step size, Bit rate, Quantization Noise are also calculated


Platforms: Matlab

Computes BER v EbNo curve for convolutional encoding / soft decision Viterbi decoding scheme assuming BPSK.Brute force Monte Carlo approach is unsatisfactory (takes too long) to find the BER curve.The computation uses a quasi-analytic (QA) technique that relies on the estimation (approximate one)...


Platforms: Matlab

In this program Quantization has been depicted in better way. All the parameters have been calculated i.e. Step size, Qua. Noise, Bit rate etc.


Platforms: Matlab

This ZIP file contains function that provide simulation of the following models:- Free space loss calculation- Reflection quantization in generic surfaces for vertical and horizontal polarizations- Plane Earth loss calculations, and- Calculation of the Divergence factor in spherical Earth


Platforms: Matlab

Real-time universal oscilloscope GUI DLL library for data acquisition, modeling, simulation, debugging. Advantages: 1.Speedy performance: the library makes it possible to bring out into the beams of the viewing oscilloscope over a million quantization steps of signal per second – thus...


Platforms: Windows, Windows CE

Fast universal oscilloscope GUI library for data acquisition, simulation. Advantages: 1. Performance: Over a million quantization steps of signal per second. 2. Versatility, convenient integration: the oscilloscope is executed as a DLL. 3. A good graphic interface: the oscilloscope looks like a...


Platforms: Windows

Fast universal oscilloscope GUI library for data acquisition, simulation. Over a million quantization steps of signal per second. Versatility, convenient integration: the oscilloscope is executed as a DLL. A good graphic interface: the oscilloscope looks like a separate window. Convenient data...


Platforms: Windows

Audio::MFCC is a Perl module for computing mel-frequency cepstral coefficients. SYNOPSIS use Audio::MFCC; my $fe = Audio::MFCC->init(%params) $fe->start_utt; my @ceps = $fe->process_utt($rawdata, $nsamps); my $leftover = $fe->end_utt; This module provides an interface to the Sphinx-II...


Platforms: *nix

JIU is a library which offers functionality to load, analyze, process and save pixel images. Various file formats are supported, demo applications for the command line and the AWT GUI toolkit are provided too..


Platforms: *nix

Audio::Data is a module for representing audio data to perl. SYNOPSIS use Audio::Data; my $audio = Audio::Data->new(rate => , ...); $audio->method(...) $audio OP ... Audio::Data represents audio data to perl in a fairly compact and efficient manner using C via XS to hold data as a C...


Platforms: *nix

PaletteMaker creates a common 256-colour palette from a list of RGB pictures. It uses an iterative and interactive procedure in order to optimize those colours that you judge most important. PaletteMaker is flexible and achieves high quality. PaletteMaker knows about the peculiarities of the...


Platforms: Windows

Every digital photo contains a wealth of hidden information -- JPEGsnoop was written to expose these details to those who are curious. Not only can one determine the various settings that were used in the digital camera in taking the photo (EXIF metadata, IPTC), but one can also extract...


Platforms: Windows

Universal oscilloscope GUI ( Real-time plot ) DLL library for data acquisition, simulation, debugging.Advantages:1.Speedy performance: the library makes it possible to bring out into the beams of the viewing oscilloscope over a million quantization steps of signal per second (on the Pentium III...


Platforms: Windows, Windows Vista

This program converts APNG animations into animated GIF format. Wu64 quantization is used for true-color files. Transparency is handled either using a threshold, or composed over chosen background color. CLI version is OS-independent, GUI version is available for Windows. Another converter:...


Platforms: Windows, Mac, Linux

FlowDesigner is a free (GPL/LGPL) data flow oriented development environment. It can be used to build complex applications by combining small, reusable building blocks. In some ways, it is similar to both Simulink and LabView, but is hardly a clone of either. FlowDesigner features a RAD GUI with...


Platforms: *nix, C/C++, BSD

Standalone viewer for CPD, GPD, JPD and JpegDefiner image formats. Lossless compression. CPD (Compression PhotoDefiner) image format, as an alternative to the .PNG format for create a smaller compressed images. CPD can recompress also png files. GPD (Graphic PhotoDefiner) image format, as an...


Platforms: Mac

Flounder is a quick way to visualize regularly spaced 4D data, i.e., a data set that is a function of x, y, z, and time. Features: - Animation - 4D (x,y,z,t) display - Display multiple data files linked by time - 2D slices along prinicpal axes - Adjustable colour scales and quantization...


Platforms: *nix, C/C++, BSD

DFT plays important role in DSP and used in wide variety of applications like correlation and spectral analysis. Understanding quantization errors in its computation is an important aspect of its design either for s/w or h/w implementation.A complex DFT of N points has N complex (4N real)...


Platforms: Matlab