公开(公告)号：DE68918911T2

公开(公告)日：1995-04-20

申请号：DE68918911

申请日：1989-08-08

Applicant: IBM

Inventor： SEKIYA KAZUO SUNHEIM ASAMI ,  SHIRAISHI YUICHI

IPC: H04N1/40 ,  G09G5/00 ,  G09G5/10 ,  H04N1/407

Abstract: A method for use in a digital data display system for converting selected M gray levels in a K-gray scale to an N-gray scale (where K>N>/=M) comprising: a stage of creating a first table in which each of said M gray levels is mapped, in accordance with the order and magnitude of the relative brightness in the K-gray scale, in different M gray levels in the N-gray scale, and a stage of creating a second table in which the M gray levels in the N-gray scale mapped in said first table is mapped correspondingly to the M gray levels in said K-gray scale.

公开(公告)号：DE68918911D1

公开(公告)日：1994-11-24

申请号：DE68918911

申请日：1989-08-08

Applicant: IBM

Inventor： SEKIYA KAZUO SUNHEIM ASAMI ,  SHIRAISHI YUICHI

IPC: H04N1/40 ,  G09G5/00 ,  G09G5/10 ,  H04N1/407

Abstract: A method for use in a digital data display system for converting selected M gray levels in a K-gray scale to an N-gray scale (where K>N>/=M) comprising: a stage of creating a first table in which each of said M gray levels is mapped, in accordance with the order and magnitude of the relative brightness in the K-gray scale, in different M gray levels in the N-gray scale, and a stage of creating a second table in which the M gray levels in the N-gray scale mapped in said first table is mapped correspondingly to the M gray levels in said K-gray scale.