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IMAGE COMPRESSION USING DISCRETE COSINE TRANSFORM


Posted by: seminar class
Created at: Tuesday 19th of April 2011 11:29:28 PM
Last Edited Or Replied at :Monday 07th of November 2011 10:31:55 PM
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nal processing and image compression. Because of their inherent multi-resolution nature, wavelet-coding schemes are especially suitable for applications where scalability and tolerable degradation are important. Recently the JPEG committee has released its new image coding standard, JPEG-2000, which has been based upon DWT CHAPTER-I
INTRODUCTION
1.1Discrete Cosine Transform
1.1.1 DISCRIPTION

Compressing an image is significantly different than compressing raw binary data. Of ..................[:=> Show Contents <=:]



LOSSLESS DATA COMPRESSION ALGORITHMS


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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and haffman coding algorithm.Shannon-fano algorithm is a top down approach, and the haffman coding algorithm is a bottom up approach.In the fixed-Length coding we are using the dictionary-based coding algorithm.
The emergency of multimedia technologies has made digital libraries a reality.noe a day’s libraries, museums, film studios and government are converting more and more data archives into digital form. Some of the data indeed to be stored without any loss.
If the total number of bits required to represent the data before compression is Bo and the total number o..................[:=> Show Contents <=:]



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
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pression standard: Baseline block-DCT based algorithm
u lossy part: quantization with different step size for each coeff. Band
u lossless part: differential coding, run-length coding, Huffman
=> Continued with the class notes handed out in last lecture
– Subband and Wavelet based compression
u Exploiting the structures between coefficients for removing redundancy
Wavelet Transform for Image Compression
 ENEE631 emphasis
– Focus on conceptual aspects related to image compression
– Wavelet is also useful for denoising, enhancement, and image analysis
– Build up..................[:=> Show Contents <=:]



FRACTAL COMPRESSION ppt


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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“child blocks.”

Compare each child block against a subset of all possible overlapping blocks of parent block size.

Determine which larger block has the lowest difference, according to some measure, between it and the child block.

Calculate a grayscale transform to match intensity levels between large block and child block precisely.
Upper left corner child block, very similar to upper right parent block.

Compute affine transform.

Store location of parent block (or transform block), affine transform components, and related child block into a file.

Repeat for each child b..................[:=> 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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to succeed in the future it should have the traits like unique-ness, accuracy, richness, ease of acquisition, reliability and above all user acceptance. Palm print based personal identi-fication is a new biometric modality which is getting wide acceptance 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 c..................[:=> 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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mage signals based on the wavelet transform. We classify wavelet coefficients as insignificant or significant by using zero tree which is defined in the embedded zero tree wavelet algorithm...................[:=> 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
..................[:=> Show Contents <=:]



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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s the fractal scheme. It provides endless scope and is under research. Further new partitioning schemes are also being developed. Another recent advance in this field has been through wavelet transformations. This is a highly efficient method based on the Fourier representation of an image. This scheme comes as a competitive development to the fractal approach.


CONCLUSION
The power of fractal encoding is shown by its ability to outperform the DCT, which forms the basis of the JPEG scheme of image compression. Thi..................[:=> 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 want the report on Video Image Compression T..................[:=> Show Contents <=:]



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