A video analysis device (2) to determine the colour value of exposure light to be used to produce a print of an analysed image in a printer (3) comprises a first lighting device (4) for exposing the image during video analysis and a video camera (16). To compensate for changes in the masking pigment of the image, the video analysis device of the invention (2) also has a device (10) for matching the spectral sensitivity of the entire system (2) on the analysis side to the one (3) on the printer side and a regulating device (20) for the colour value of the exposure light provided by the first lighting device (4) to which the white balance signal of a white balance control circuit of the video camera (16) is applied.
申请公布号
DE3942634(A1)
申请公布日期
1991.06.27
申请号
DE19893942634
申请日期
1989.12.22
申请人
BBS AG INTERNATIONAL, MAUREN, LI
发明人
SCHMERLER, DETLEV, MAUREN, LI;BRUGGER, GERHARD, 8183 ROTTACH-EGERN, DE