(19)
(11) EP 1 365 600 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION

(48) Corrigendum issued on:
03.03.2004 Bulletin 2004/10

(43) Date of publication:
26.11.2003 Bulletin 2003/48

(21) Application number: 03011062.1

(22) Date of filing: 20.05.2003
(51) International Patent Classification (IPC)7: H04N 17/04
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 20.05.2002 JP 2002144669

(71) Applicant: SEIKO EPSON CORPORATION
Tokyo 160-0811 (JP)

(72) Inventors:
  • Matsuda, Hideki, Seiko Epson Corporation
    Nagano-ken 392-8502 (JP)
  • Kanai, Masashi, Seiko Epson Corporation
    Nagano-ken 392-8502 (JP)

(74) Representative: Hoffmann, Eckart, Dipl.-Ing. 
Patentanwalt, Bahnhofstrasse 103
82166 Gräfelfing
82166 Gräfelfing (DE)

   


(54) Image processing system, projector, information storage medium and image processing method


(57) In order to provide an image processing system and the like which can reduce calibration time, the image processing system comprises: a device profile storage section 130 which stores ideal-environment-measurement data; a light separating section 142 which derives output light data indicating output light from an image projecting section and ambient light data based on a difference between first and second viewing-environment-measurement data measured through a sensor 60; a projection-plane-reflectance estimating section 140 which estimates a reflectance of a projection plane, based on the output light data and the ideal-environment-measurement data; a sensing data generating section 170 which generates viewing-environment-estimation data based on the reflectance, the ideal-environment-measurement data and the ambient light data; an LUT generating section 160 which updates an LUT based on the viewing-environment-estimation data; and a correcting section 120 which corrects image information based on the updated LUT.