Encoding method for digital picture data

Abstract

Abstract PURPOSE:To decrease the value of DSV regarding picture data by substituting a word in a natural binary code by a prescribed word, and inverting it into a complementary word. CONSTITUTION:A color video signal is supplied to an A-D converter 2, which converts the input into a word in an 8-bit natural binary code. This data word is supplied to a DSV control encoding circuit 3, which substitutes the data word by an 8-bit word rearranged by CDS. At the same time, this substituted word is inverted into a complementary word, word by word, by utilizing correlation. Consequently, DSV for picture data is reduced greatly.

Inventors

• 👤 Kenji Watanabe
• 👤 健治 渡辺

Bibliographic Details