Search
Code Directory
 ASP
 ASP.NET
 C/C++
 CFML
 CGI/PERL
 Delphi
 Development
 Flash
 HTML
 Java
 JavaScript
 Pascal
 PHP
 Python
 SQL
 Tools
 Visual Basic & VB.NET
 XML
New Code
.Net Runtime Library for Delphi 6.0.4.0
Scimbo 1.64
AnyMap JS Maps 8.4.2
GetOrgChart 2.5.3
AnyChart JS Charts and Dashboards 8.4.2
OrgChart JS 3.8.0
dbForge Compare Bundle for MySQL 8.1
dbForge Search for SQL Server 2.3
Database Workbench Pro 5.5.0
Luxand FaceSDK 7.0
SSIS Data Flow Components 1.10
Entity Developer Professional 6.3
dbForge Index Manager for SQL Server 1.9
dbForge Data Generator For MySQL 2.2
Magento Australia Post eParcel Extension 1.0
Top Code
PHP Point of sale 10.0
MATLAB Support Package for Arduino (aka ArduinoIO Package) 1.0
Betting system 6.x-1.x-dev
Java-2-Pseudo 1.0
Faculty Evaluation System 1.1
TeeBI for RAD Studio Suite 2017
Cuckoo Search (CS) Algorithm 1.0
Student Information Management System 1.0
Java/RTR 1.0
JEDI Database Desktop 27012002
Mind Fighter 1.1
JAC (Java Asn.1 Compiler) 3.0
000-516 Free Test Exam Questions 10.0
ICDoctorAppointment - Doctor Appointment Script 1.2
CONTRAST CONTROLLER 1.0
Top Rated
Deals and Discounts Website Script 1.0.2
ADO.NET Provider for ExactTarget 1.0
Solid File System OS edition 5.1
Classified Ad Lister 1.0
Aglowsoft SQL Query Tools 8.2
ICPennyBid Penny Auction Script 4.0
PHP Review Script 1.0
ATN Resume Finder 2.0
ATN Site Builder 3.0
Availability Booking Calendar PHP 1.0
PHP GZ Blog Script 1.1
ATN Jobs Software 4.0
ATN Mall 2.0
WeBuilder 2015 13.3
PHP Digital Download Script 1.0.4
spiht algoritm based image compression 1.0
File ID: 78018






spiht algoritm based image compression 1.0
Download spiht algoritm based image compression 1.0http://www.mathworks.comReport Error Link
License: Freeware
File Size: 41.0 KB
Downloads: 403
Submit Rating:
spiht algoritm based image compression 1.0 Description
Description: The SPIHT method is not a simple extension of traditional methods for image compression, and represents an important advance in the field. The method deserves special attention because it provides the following:
Highest Image Quality
Progressive image transmission
Fully embedded coded file
Simple quantization algorithm
Fast coding/decoding
Completely adaptive
Lossless compression
Exact bit rate coding
Error protection

Encoding/Decoding Speed
The SPIHT process represents a very effective form of entropy-coding. This is shown by the demo programs using two forms of coding: binary-uncoded (extremely simple) and context-based adaptive arithmetic coded (sophisticated). Surprisingly, the difference in compression is small, showing that it is not necessary to use slow methods (and also pay royalties for them!). A fast version using Huffman codes was also successfully tested, but it is not publicly available.
A straightforward consequence of the compression simplicity is the greater coding/decoding speed. The SPIHT algorithm is nearly symmetric, i.e., the time to encode is nearly equal to the time to decode. (Complex compression algorithms tend to have encoding times much larger than the decoding times.)
Some of our demo programs use floating-point operations extensively, and can be slower in some CPUs (floating points are better when people want to test you programs with strange 16 bpp images). However, this problem can be easily solved: try the lossless version to see an example. Similarly, the use for progressive transmission requires a somewhat more complex and slower algorithm. Some shortcuts can be used if progressive transmission is not necessary.
When measuring speed please remember that these demo programs were written for academic studies only, and were not fully optimized as are the commercial versions.

Applications
SPIHT exploits properties that are present in a wide variety of images. It had been successfully tested in natural (portraits, landscape, weddings, etc.) and medical (X-ray, CT, etc) images. Furthermore, its embedded coding process proved to be effective in a broad range of reconstruction qualities. For instance, it can code fair-quality portraits and high-quality medical images equally well (as compared with other methods in the same conditions).
SPIHT has also been tested for some less usual purposes, like the compression of elevation maps, scientific data, and others.

License: Freeware

Related: lossless, similarly, solved, Easily, Problem, progressive, requires, measuring, remember, necessarywhen, Shortcuts, Complex, Images, strange, times, larger

O/S:BSD, Linux, Solaris, Mac OS X

File Size: 41.0 KB

Downloads: 403



More Similar Code

this code does gray scale image compression
to use this codes u have to first convert RGB image to grayscale and also its colormap.....



IMComp is an Image COmpression Software based on MATLAB used to compress various JPEG images. This software is primarily useful for compressing images which are being taken with the help of Digital Cameras and Mobile Phones

Though using...



Image compression using wavelet transform

*wavelet transform give better information about non-stationary signals in time domain



six different DCT (Discrete Cosine Transform based image fusion techniques are presented
Image fusion using DCT based demo programme is presented.



Dual regularization-based image resolution enhancement for asymmetric stereoscopic images



This is a demo program of the paper Ant colony optimization for wavelet-based image interpolation using a three-component exponential mixture model," Expert Systems with Applications, Vol. 38, No. 10, Sept. 2011, pp. 12514-12520.



The image compression routine uses the concept of factorizing the image-matrix & using only the required 'key' values that represent the original image-matrix.
There is loss of data, in the sense that, the original matrix cannot be...



vSlider is a jQuery based image slide show script that can display specific images on your WordPress based website with fading or sliding transitions. This way you can future the more important pages or products from your website or even other...



Used in image compression, the haar transform is an alternative to the DCT transformation. This file compute an n*n Haar matrix. (same use as "dctmtx")

User Review for spiht algoritm based image compression
- required fields
     

Please enter text on the image