Patent · US Expired

Image reproducing method

US6081317A · kind A · utility

1Cited by

5References

22Claims

0Family size

Assignee

Konica Corporation · JP

Inventors

Shouichi Nomura · Hino, JP
Tsuyoshi Haraguchi · Hino, JP
Yoshiaki Yamanaka · Hino, JP

Key dates

Filing date	Jun 29, 1998
Grant date	Jun 27, 2000
Priority date	—
Expiry date	Jun 29, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH04N1/4072
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An image reproducing method includes a step of obtaining a print reproducing an object based on image information obtained by photographing the object, wherein logarithm E of object brightness satisfies formula (1) and formula (2) is effected with the logarithm E, EQU D(E1).ltoreq.D(E).ltoreq.D(E2) (1) EQU 0.7.ltoreq.(D(E+0.1)-D(E))/0.1.ltoreq.1.3 (2) wherein D(E) represents density on the print reproduced by the logarithm E of object brightness, Dmin represents minimum density reproduced on the print, and D(E1) and D(E2) satisfy the following formulas. EQU D(E1)=Dmin+0.15 EQU D(E2)=Dmin+0.4

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.