JP2543146B

PURPOSE:To obtain the color correcting device of simple hardware constitution by forming color correcting processing of four table memories and a color correction table selecting means. CONSTITUTION:The color-separated digital signals 1-3 of a color scanner are converted into density signals Dr, Dg,...

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Bibliographische Detailangaben
Hauptverfasser: SUGANO YOSHIMITSU, KUROSAWA TOSHIHARU, KANAMORI KATSUHIRO, KAWAKAMI HIDEHIKO, KODERA HIROAKI
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To obtain the color correcting device of simple hardware constitution by forming color correcting processing of four table memories and a color correction table selecting means. CONSTITUTION:The color-separated digital signals 1-3 of a color scanner are converted into density signals Dr, Dg, Db by logarithmic conversion table memories 4-6. As far as here, data is processed by 8 bits signal, but only higher order five bits are used for the input of color correcting processing, and are inputted to color correction table memories 10 to 13. Then, the contents of the table memories 10-13 are read out according to the combination of the density signals 7-9 of higher order 5 bits, and color corrected signals 16-19 are outputted. The color correction table selecting means 14 makes color correction data in the table memories 10-13 capable of being switched within the limit of two kinds of them, and one more color correction table can be provided practically.