Color Image Compression Using Wavelets.

Date of Submission

December 2003

Date of Award

Winter 12-12-2004

Institute Name (Publisher)

Indian Statistical Institute

Document Type

Master's Dissertation

Degree Name

Master of Technology

Subject Name

Computer Science


Machine Intelligence Unit (MIU-Kolkata)


Murthy, C. A. (MIU-Kolkata; ISI)

Abstract (Summary of the Work)

1.1 Image CompressionImage Compression refers to a process in which the amount of data used to represent image is reduced to meet a bit rate requirement, while the quality of the reconstructed image satisfies a requirement for a certain application and the complexity of computation involved is affordable for the application. Over the past few years thc world has witnessed a growing demand for visual based information and communications applications. As the demand for now applications and higher quality for cxisting applications continues to rise, the transmission and storage of the visual information becomes a critical issue. The reason is that the higher image or video quality requires larger volume of information. How ever transmission media have a finite and limited bandwidth. To illustrate this problem consider a typical (512x512) gray level (8-bit) image. This image has 20,97,152 bits. By using a 64 Kbit/s communication channel, it will take about 33 seconds to transmit the image. Where as this might be acceptable for one-time transmission of a single image, it would definitely not be acceptable for tele- conference applications, where some form of continuous motion is required. To store digital version of a 90 minute black and white movie, at 30 frames/sec, with each fran having (512x512x8) bits, would require 3.397386e+11, over 42 Gbytes. So efficie. image compression algorithms are appreciable.


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Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.


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