Graphics segmentation based coding of multimedia images

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Graphics segmentation based coding of multimedia images

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The authors present a multimedia image coding scheme which is used to segment mixed images into graphics and picture areas. Graphics are coded by the proposed ERLC and pictures are coded by the DCT. While graphics are coded losslessly at 0.5 bit/pixel, pictures can be efficiently coded at the desired quality.

Inspec keywords: discrete cosine transforms; runlength codes; image coding; multimedia communication

Other keywords: picture areas; multimedia images; graphics segmentation based coding; mixed image segmentation; ERLC; extended runlength coding; DCT; image coding scheme

Subjects: Other numerical methods; Computer vision and image processing techniques; Optical information, image and video signal processing; Other numerical methods; Multimedia communications; Codes

References

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      • K.N. Ngan , K.S. Leong , H. Singh . Adaptive cosine transform coding of images in perceptual domain. IEEE Trans. , 11 , 1743 - 1749
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      • A.N. Netravali , B.G. Haskell . (1988) Digital pictures, representation and compression.
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      • Ghanbari, M., Sampson, D., da Silva, E.A.B., Pearson, D.E.: `Coding of SHD images using multistage lattice vector quantization andwavelet transform', Proc. Int. Picture Coding Symp. (PCS'94), September 1994, Sacramento, California, p. 117–119.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19950404
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