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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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LZW Compression (contd.)
CONCLUSION
Is it possible to create a data compression algorithm that will always compress data?
Is there an optimal data compression algorithm?
Lossless: No, compression rates depend on the data.
Lossy: No, the quality ..................[:=> 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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noise, the correlation between pixels is degraded. As a result, the efficiency of image compression is decreased.
The signal bits contain image structural information. The noise bits are contaminated by noise.
II. MATERIALS AND ETHODS
A.Estimation of noise level
The signal component image is obtained by median filtering the original image with a 3×3 window.
Define a residual image as the subtraction between the original and its signal component images. The residual image contains structured edges and noisy background information.
Standard deviation can be used to estimate th..................[:=> 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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n And Applications (Iccda )- Image Processing – Java

This paper presents a state-of-the-art implem..................[:=> 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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ch 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 contained two phases. First the image was partitioned to segments that were self-similar as possible. Then each part was described as IFS with pro..................[:=> 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
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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 compression no information is lost during the compression and the deco..................[:=> 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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technique
An Automatic Solar Tracking System...................[:=> 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
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(12)
Bacteria powered fuel cells
High voltage circuit breakers
HVDC Technology and Short Circuit Contribution of HVDC Light (13)
Floating Power stations
Wavelet based Multi function relay for E.H.V Transmission lines
Infrared thermography (14)
fire retardent tapes
Solid Oxide Fuel Cell
Power Quality (15)
Induction Generators for wind generation
Gasifier power Storage
E- bomb (16)
Micro Turbine Generator System
Flyash Utilization
High-availability power systems: Redundancy options (17)
Electro heological Fluids
Jet Stream Windmill
Nanotechnology (18)
Swing Power ge..................[:=> 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 :Wednesday 01st of October 2014 12:50:54 PM
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rgy Storage In Phase Change Materials
Dynamics of Cutting Viscoelastics Materials
Snaps To Replace Screws
Vibration control Techniques
Pyrometers
Power From Space For Use On Earth
Advanced Propulsion Methods
Super Charg..................[:=> Show Contents <=:]



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