Method and apparatus for compression of data representing image

Method and apparatus for compression of data representing image

  • CN 1,592,416 B
  • Filed: 12/03/1997
  • Issued: 05/05/2010
  • Est. Priority Date: 12/03/1997
  • Status: Active Grant
First Claim
Patent Images

1. data reconstruction method comprises step:

  • The corresponding section of each 1 pixel of input image data is quantified as the one 4 Value Data section, and described the one 4 Value Data section can change in four kinds of different conditions,Generate 2 value data boundary sections of the boundary information of the described input image data of expression according to described the one 4 Value Data section,The one 4 Value Data section is converted to 3 Value Data sections,Make up described 3 Value Data sections and described 2 value data boundary sections to generate the 24 Value Data section, wherein said the 24 Value Data section can change in four kinds of different conditions, the corresponding pixel of expression that one of all different conditions of described the 24 Value Data section are assigned to described boundary information should be 1 a pixel corresponding blocks of the part on border, and other different conditions of described the 24 Value Data section then are assigned to each 1 pixel corresponding blocks of described pictorial information and the corresponding pixel of expression of described boundary information should not be 1 a pixel corresponding blocks of the part on border;

    The state that detects each the 24 Value Data section whether with described all different conditions in a predetermined state consistency, determining whether corresponding pixel should be the part on border, and convert each the 24 Value Data section in the auxiliary video signal the corresponding section of 1 pixel;

    AndThe corresponding section of 1 pixel of described auxiliary video signal and the corresponding section of 1 pixel of main video signal are mixed into the corresponding section of 1 pixel of a mixed video signal with a mixing ratio that equals desired mixture ratio, thereby on screen, show this mixed video signal.

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