PICTURE CORRECTION METHOD AND PICTURE COPYING MACHINE WITH THE METHOD APPLIED THERETO

PURPOSE:To realize always excellent copying of a picture even when the density characteristic is subject to change due to a difference of a structure between machines or an external environmental change by correcting properly the complicated reproduction density characteristic of the picture copying...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	OTA KENICHI, USAMI AKIHIRO, OTA EIJI, HORIE YOSHIKO, KAWAI TAKASHI, MASANO SEITA
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME IMAGE DATA PROCESSING OR GENERATION, IN GENERAL LINING MACHINES PERFORMING OPERATIONS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To realize always excellent copying of a picture even when the density characteristic is subject to change due to a difference of a structure between machines or an external environmental change by correcting properly the complicated reproduction density characteristic of the picture copying machine. CONSTITUTION:A CPU 112 allows a pattern generator 113 to generate a color patch based on pattern signals Yo, Mo, Co, BKo decided in advance for each of Y, M, C, Bk and a print processing section 111 prints out the patch. Feedback signals Y, M, C, Bk are obtained by applying color separation, shading correction, logarithmic transformation and masking processing similar to the picture output processing to the gradation pattern patch. The feedback signal is stored in a memory 114. The color correction is implemented so that a pattern signal and the feedback signal of a color original are identical to each other.