Method for encoding a digital color video signal by rate compres

Details Method for encoding a digital color video signal by rate compres Method for encoding a digital color video signal by rate compres

1984-04-04

1986-04-22

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 12, H04N 1104, H04N 1106

Patent

active

045845972

ABSTRACT:
A digital luminance signal and two digital color difference signals having high bit-rates and composed of words representing color picture elements are encoded into an encoded digital luminance signal and two encoded digital color difference signals having low bit-rates and composed of second words. The second words are selected in terms of real variation intervals of the two color differences having limits depending on a linear relation associating them with the luminance value.

REFERENCES:
William K. Pratt, "Spatial Transform Coding of Color Images", IEEE Transactions or Communications Technology, vol. COM-19, No. 6, Dec. 1971, pp. 980-992.

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