A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color Images
In this paper, we propose the HDWTSVD system to encode color images. Before encoding, the color components (RGB) are transformed into YCbCr. Cb and Cr components are downsampled by a factor of two, both horizontally and vertically, before sending them through the encoder. A criterion based on the av...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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International Institute of Informatics and Cybernetics
2003-04-01
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| Series: | Journal of Systemics, Cybernetics and Informatics |
| Subjects: | |
| Online Access: | http://www.iiisci.org/Journal/CV$/sci/pdfs/P894465.pdf
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| _version_ | 1818446043033894912 |
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| author | Humberto Ochoa K.R. Rao |
| author_facet | Humberto Ochoa K.R. Rao |
| author_sort | Humberto Ochoa |
| collection | DOAJ |
| description | In this paper, we propose the HDWTSVD system to encode color images. Before encoding, the color components (RGB) are transformed into YCbCr. Cb and Cr components are downsampled by a factor of two, both horizontally and vertically, before sending them through the encoder. A criterion based on the average standard deviation of 8x8 subblocks of the Y component is used to choose DWT or SVD for all the components. Standard test images are compressed based on the proposed algorithm. |
| first_indexed | 2024-12-14T19:41:26Z |
| format | Article |
| id | doaj.art-18c5746ffd5848699854b0b3b4051d29 |
| institution | Directory Open Access Journal |
| issn | 1690-4524 |
| language | English |
| last_indexed | 2024-12-14T19:41:26Z |
| publishDate | 2003-04-01 |
| publisher | International Institute of Informatics and Cybernetics |
| record_format | Article |
| series | Journal of Systemics, Cybernetics and Informatics |
| spelling | doaj.art-18c5746ffd5848699854b0b3b4051d292022-12-21T22:49:41ZengInternational Institute of Informatics and CyberneticsJournal of Systemics, Cybernetics and Informatics1690-45242003-04-01126469A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color ImagesHumberto Ochoa0K.R. Rao1 University of Texas at Arlington, USA / Universidad Autónoma de Cd. Juárez, México University of Texas at Arlington In this paper, we propose the HDWTSVD system to encode color images. Before encoding, the color components (RGB) are transformed into YCbCr. Cb and Cr components are downsampled by a factor of two, both horizontally and vertically, before sending them through the encoder. A criterion based on the average standard deviation of 8x8 subblocks of the Y component is used to choose DWT or SVD for all the components. Standard test images are compressed based on the proposed algorithm.http://www.iiisci.org/Journal/CV$/sci/pdfs/P894465.pdf singular value decompositioncoding color images using waveletsdiscrete waveletsVector QuantizationHC-RIOT |
| spellingShingle | Humberto Ochoa K.R. Rao A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color Images Journal of Systemics, Cybernetics and Informatics singular value decomposition coding color images using wavelets discrete wavelets Vector Quantization HC-RIOT |
| title | A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color Images |
| title_full | A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color Images |
| title_fullStr | A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color Images |
| title_full_unstemmed | A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color Images |
| title_short | A Hybrid DWT-SVD Image-Coding System (HDWTSVD) for Color Images |
| title_sort | hybrid dwt svd image coding system hdwtsvd for color images |
| topic | singular value decomposition coding color images using wavelets discrete wavelets Vector Quantization HC-RIOT |
| url | http://www.iiisci.org/Journal/CV$/sci/pdfs/P894465.pdf
|
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