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Posted by: seminar class
Created at: Tuesday 22nd of March 2011 06:20:01 AM
Last Edited Or Replied at :Thursday 01st of March 2012 12:12:16 AM
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haffman coding algorithm is a bottom up approach.In the fixed-Length coding we are using the dictionary-based coding algorithm.
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Wavelet Based Image Coding

Posted by: seminar class
Created at: Tuesday 22nd of February 2011 11:37:51 PM
Last Edited Or Replied at :Tuesday 22nd of February 2011 11:37:51 PM
wavelet based image compression ppt , wavelet based image compression seminar topic, sub band coding , wavelet coding seminar ppt, seminar topics based on wavelets ,
and early wavelet coding
 Some difference between subband coding and early wavelet coding ~ Choices of filters
– Subband filters aims at (approx.) non-overlapping freq. response
– Wavelet filters has interpretations in terms of basis and typically designed for certain smoothness constraints
(=> will discuss more )
 Shortcomings of subband coding
– Difficult to determine optimal bit allocation for low bit rate applications
– Not easy to accommodate different bit rates with a single code stream
– Difficult to encode at an exact target rate
Smoothness Conditions on Wavele..................[:=> Show Contents <=:]


Posted by: seminar surveyer
Created at: Thursday 27th of January 2011 12:48:10 AM
Last Edited Or Replied at :Thursday 27th of January 2011 12:48:10 AM
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n of a fern.

Dimension of a cloud.

Fractals are geometrical objects with fractional dimension.

Mathematical background
Started with Michael Barnsley, and refined by A. Jacquin
Try and find a set of transforms that map an image onto itself.
The key is the Collage Theorem
States that if the error difference between the target image and the transformation of that image is less than a certain value the transforms are an equivalent representation of the image.

Iterated function systems
An IFS is the collection of contractive affine transforms

Pa..................[:=> Show Contents <=:]

Wavelet Based Palmprint Authentication System

Posted by: projectsofme
Created at: Friday 08th of October 2010 11:32:53 PM
Last Edited Or Replied at :Wednesday 13th of June 2012 05:40:17 AM
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nce and has all the necessary traits to make it a part of our daily life. This paper investigates the use of palm print for personal identification using combination of dif-ferent wavelets. Palmprint not only has the unique informa-tion available as on the fingerprint but has far more amount of details in terms of principal lines, wrinkles and creases. Moreover it can easily be combined with hand shape bio metric so as to form a highly accurate and reliable biometric based personal identification system. Palmprint based personal verification has become an in-creasingly active research topic ..................[:=> Show Contents <=:]

A Digital Watermark Based on The Wavelet Transform and its Robustness on Image

Posted by: project topics
Created at: Sunday 25th of April 2010 11:00:43 PM
Last Edited Or Replied at :Wednesday 19th of December 2012 12:18:05 AM
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data such as multimedia services on the Internet, there is a pressing need to ..................[:=> Show Contents <=:]

study on huber fractal image compression

Posted by: selvi
Created at: Friday 02nd of April 2010 06:12:10 AM
Last Edited Or Replied at :Friday 02nd of April 2010 06:27:20 AM
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could i get a clear explanation about the topic . And also could u provide me code for this topic along with explanation

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fractal image compression seminar report

Posted by: applied electronics
Created at: Tuesday 29th of December 2009 04:18:36 AM
Last Edited Or Replied at :Thursday 16th of February 2012 12:53:20 AM
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cy that can be removed when the image is stored and then replaced when it is reconstructed.
Fractal image compression is a recent technique based on the representation of an image. The self-transformability property of an image is assumed and exploited in fractal coding. It provides high compression ratios and fast decoding. Apart from this it is also simple and is an easily executable technique.

I express my sincere gratitude to Dr.Nambissan, Prof. & Head, Department of Electrical and Electronics Engineering,..................[:=> Show Contents <=:]

Data Compression Techniques

Posted by: electrical engineering
Created at: Tuesday 29th of December 2009 02:43:47 AM
Last Edited Or Replied at :Thursday 01st of March 2012 12:11:42 AM
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ata units represent the average pixel value and successive higher frequency changes with in groups.
5) Each of 64 frequency components in a data unit is divided by a separate number called quantisation coefficient and rounded to an integer.
6) The 64 quantized frequency coefficients of each data unit are encoded using a combination of RLE and huffman coding.
7) The last step adds headers and all the JPEG parameters used and outputs the result.
Often, the eye cannot see any image degradation at compression ratios of 10:1 or 20:1. There are two main modes: lossy (also called baseline) and l..................[:=> Show Contents <=:]

Video Image Compression Techniques

Posted by: vissu_52
Created at: Monday 21st of December 2009 03:01:11 AM
Last Edited Or Replied at :Friday 24th of February 2012 11:35:37 PM
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I w..................[:=> Show Contents <=:]

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