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Abstract
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Article Information:
Sub-band Based DCT for Image Compression
M. Marimuthu, R. Muthaiah and P. Swaminathan
Corresponding Author: M. Marimuthu
Submitted: March 18, 2012
Accepted: April 14, 2012
Published: December 15, 2012 |
Abstract:
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Uncompressed multimedia such as data, image, audio and video requires transmission bandwidth
and storage capacity. Due to demand for data storage capacity and data transmission bandwidth, Image
compression is used which provides data security, reduces the storage requirements, provides rich quality
signals for visual data representation and reduces the image fidelity. The focus of this study is the Discrete
Cosine Transform (DCT) and Inverse Discrete Cosine Transform (IDCT) based on the sub-band decomposition
for image compression. The simulated results are shown that sub-band decomposition based DCT provides
good compression rate and better peak signal to noise ratio than conventional DCT.
Key words: Discrete cosine transform, fast DCT, image compression, inverse discrete cosine transform, sub - band decomposition based DCT, ,
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Abstract
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Cite this Reference:
M. Marimuthu, R. Muthaiah and P. Swaminathan, . Sub-band Based DCT for Image Compression. Research Journal of Applied Sciences, Engineering and Technology, (24): 5387-5390.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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