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DATA COMPRESSION AND HUFFMAN ALGORITHM


Posted by: smart paper boy
Created at: Thursday 14th of July 2011 01:51:43 AM
Last Edited Or Replied at :Thursday 01st of March 2012 12:12:02 AM
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numerical, image, video contain redundant elements
Data can be compressed by eliminating the redundant elements.
A code is substituted for the eliminated redundant element, where the code is shorter than eliminated element.
When compressed data is retrieved from storage or received over a communications link, it is expanded back to its original form, based on the code.
Compression is used:
to save storage space
to reduce communications transmission requirements
The art or science of compactly representing information
Digital realm: using lesser number of bits to represent information..................[:=> Show Contents <=:]



A Pseudo Lossless Image Compression Method


Posted by: smart paper boy
Created at: Monday 20th of June 2011 05:11:22 AM
Last Edited Or Replied at :Monday 20th of June 2011 05:11:22 AM
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,
(2) identifying the noise bits and modify them,
(3) compressing the image reversibly.
The idea behind this method is that we can modify the noise bits in the image without affecting the quality and yield better compression ratio.
I. INTRODUCTION(cont.)
The advantage of this new technique is that the compression ratio is higher than reversible compression method and the image quality is not affected.
II. MATERIALS AND ETHODS
When an image is contaminated by noise, the correlation between pixels is degraded. As a result, the efficiency of image compression is ..................[:=> Show Contents <=:]



An Improved Lossless Image Compression Algorithm Loco-R


Posted by: project topics
Created at: Thursday 28th of April 2011 08:15:54 AM
Last Edited Or Replied at :Thursday 28th of April 2011 08:15:54 AM
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On Computer Design And Applications (Iccda )- Image Processing – Java

This pape..................[:=> Show Contents <=:]



Fractal Image Compression


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:39:54 PM
Last Edited Or Replied at :Monday 04th of June 2012 05:54:44 AM
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e high frequency Fourier co-efficients and storing only the low frequency coefficients. This is the principle behind the DCT transformation which forms the basis of the JPEG scheme of image compression.

Barnsley suggested that storing of images as iterated functions of parts of itself leads to efficient image compression.In the middle of the 80's this concept of IFS became popular. Barnsley and his colleagues in the Georgia University first observed the use of IFS in computerized graphics applications. They found that IFS was able to cress colour images upto 10000 times. The compression con..................[:=> Show Contents <=:]



Data Compression Techniques


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:35:16 PM
Last Edited Or Replied at :Saturday 20th of September 2008 11:35:16 PM
Techniques, Compression , Data, data compression techniques ppt and pdf , seminar on data compression techniques, data compression techniques ,
ompression
2. Lossless compression

Lossy Compression
In lossy compression some information is lost during the processing, where the image data is stored into important and unimportant data. The system then discards the unimportant data
It provides much higher compression rates but there will be some loss of information compared to the original source file. The main advantage is that the loss cannot be visible to eye or it is visually lossless. Visually lossless compression is based on knowledge about colour images and human perception.

Lossless Compression
In this type of compressio..................[:=> Show Contents <=:]



Solar Power Generation


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:21:54 PM
Last Edited Or Replied at :Friday 17th of February 2012 11:45:20 PM
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output from the panel. Thus for maximum utilization of the Sun through out the day, the panel must be kept perpendicular to the sun. This is possible only by tracking the sun
In this paper, I will be dealing with
Some aspects of solar power generation technique
A..................[:=> Show Contents <=:]



Electrical Seminar lists1


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:10:09 PM
Last Edited Or Replied at :Saturday 22nd of January 2011 01:08:34 AM
lists1 , Seminar, Electrical , ppt on ddr motors, seminar on electric cylinders , parasitic power, mems a pollution free option for power generation , boosting motoring efficency using small chips, electrical distribution system and suppression techniques , electric cylinder seminar full report, micro power electrostatic generator meg , electric cylinders, electricity from socean waves , electro heological fluids, pumped hydroelectric energy storage , presentation on electrical distribution system and suppression techniques, electrical seminar on electric field optimization of high voltage electrode digram , 9632 electro heological fluids, seminar report on jet stream windmill ,
m
White LED: The Future Lamp
Robotics and its Applications
12 Phase Capacitor
Electric field optimization of high voltage electrode based on neural network
Electro wetting
Pumped Hydroelectric Energy Storage
Voltage Sag Analysis
Modelling Of Transformers With Internal Incipient Faults
Super conducting generator
Telluri Current
Transient over voltages in electrical distribution system and suppression techniques
Intrusion Detection With Snort
Frequency and Time Domain Techniques
Electricity From sOcean Waves
Electric Cylinders
Cluster Meter System
Substation Shielding, Ground ..................[:=> Show Contents <=:]



List of mechanical Seminar topics3


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 12:15:31 PM
Last Edited Or Replied at :Saturday 20th of September 2008 12:15:31 PM
seminar topics computer networks, seminar topics chemical engineering , seminar topics computer science engg, seminar topics cse , seminar topics computer science, latest seminar topics mechanical , new seminar topics mechanical, latest mechanical seminar topics mechanical engineering , seminar topics mechanical engg, seminar topics mechanical branch , technical seminar topics mechanical engineering, seminar topics mechanical engineering , seminar topics mechanical, topics3 , Seminar, mechanical , List, mechanical seninar vibration control techniques , cryogenic ball valves,

Therrmophoresis
Modern Air Pollution Control Technologies
Common Rail Direct Injection (Crdi) Engines
Thermo Hygrometer
Future of Portable Power
Automobile Air Conditioning
Transfer Machines
Micro- and Nano-Mechanics of Surface Contact Plasticity
Spark Sintering
IT Application in Complex Syatem Analysis
Research and Materials of Armor Design
Carbon Nanotubes
Wireless Energy Transmission
Hydraulic Elevators
Solar Heat Energy Storage In Phase Change Materials
Dynamics of Cutting Viscoelastics Materials
Snaps To Replace Screws
Vibration control Techniques
Pyrometers
Pow..................[:=> Show Contents <=:]



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