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Enhanced differential chain coding for transmission of high quality line graphics

Enhanced differential chain coding for transmission of high quality line graphics

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© IEE
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An enhanced differential chain coding (EDCC) scheme is developed for transmission of high-quality line graphics. Experiments showed that, compared to DCC with a resolution of the enhanced graphics adapter (EGA: 640×350 pixels), EDCC with a resolution of 2100×1536 pixels gives a much higher quality with a modest extension in storage and transmission capacity.

Inspec keywords: image coding; computer graphics

Other keywords: 1536 pixel; enhanced differential chain coding; transmission capacity; 2100 pixel; high quality line graphics

Subjects: Graphics techniques; Optical information, image and video signal processing; Codes; Pattern recognition

References

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      • Freeman . On the encoding of arbitrary geometric configurations. IRE Trans. Electronic Computers , 260 - 268
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      • T.S. Huang . Coding of two-tone images. IEEE Trans. , 1406 - 1424
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      • K. Liu , R. Prasad . Rate comparison of vector chain coding and run-length coding for linedrawings. Electro. Lett. , 1722 - 1713
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      • M. de Klerk , R. Prasad , J.H. Bons , N.B.J. Weyland . Introducing high-resolution line graphics in UK teletext using differentialchain coding. IEE Proc. , 325 - 334
    6. 6)
      • Liu, K., Prasad, R.: `On the quantization and coding efficiently in line transmission usingdifferential chain coding', Proc. Int. Conf. on Commun. (ICC'90), April 1990, 3, Atlanta, p. 325a.2.1–325A.2.5.
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