System for processing half tone record in color recording

Abstract

Abstract PURPOSE:To visually uniformize the color and its density, by dispersing the arrangement of dots of each primary color as much as possible. CONSTITUTION:A picture signal PIX is separated into three primary colors or Y (yellow), M (magneta), and C (cyan) by a color separating circuit 5, and then introduced to comparators 71-73 via AD converters 61-63. The comparators 71-73 compare the AD-converted Y, M and C with the signals of threshold matrix values A, B and C stored in an ROM 8 and, when the level of each primary color is higher than the threshold, output a logic ''1''. When, for example, the signal levels of the Y, M, and C are represented by 5, 6, and 7, respectively, a record as shown by Fig. (b) is repeated and each primary color is relatively uniformly dispersed as shown in the diagram and there is not dot to be replaced by BK (black). Therefore, the record is visually excellent in color and its density.

Inventors

• 👤 Takashi Saito
• 👤 隆 斉藤

Bibliographic Details