IMAGE PROCESSING APPARATUS AND GRADATION ADJUSTMENT METHOD

• Main Author: KONDO TOMONORI
• Format: Patent
• Language: English; Japanese
• Published: 01.04.2021
• Subjects: CALCULATING; CINEMATOGRAPHY; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DIGITAL DATA PROCESSING; ELECTRICITY; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MAGNETOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

To provide means that can obtain a print result desired by a user in printing in which gradation adjustment is performed for every different color materials of the same color.SOLUTION: An image processing apparatus instructing printing to an image forming apparatus comprises: a gradation value adjustment instruction unit that instructs adjustment of gradation values of a first color material and a second color material of the same color; a storage unit that stores in advance density values of the first color material and second color material for the gradation values, and a density value a color material obtained by combining the first color material and second color material for the gradation values; a gradation value prediction unit that predicts a gradation value of the color material obtained by combining the first color material and second color material, based on the gradation values of the first color material and second color material instructed by the gradation value adjustment instruction unit, the density values of the first color material and second color material for the gradation values stored in the storage unit, and the density value of the color material obtained by combining the first color material and second color material for the gradation values; and a gradation value display unit that displays the gradation value of the color material obtained by combining the first color material and second color material predicted by the gradation value prediction unit.SELECTED DRAWING: Figure 2 【課題】同一色で異なる色材毎に階調調整する印刷において、ユーザー所望の印刷結果を得られる手段を提供する。【解決手段】本発明は、画像形成装置に印刷を指示する画像処理装置において、同一色である第１の色材と第２の色材のそれぞれの階調値の調整指示を行う階調値調整指示部と、各階調値に対する前記第１の色材と第２の色材の濃度値と、各階調値に対する前記第１の色材と第２の色材を合わせた色材の濃度値とをあらかじめ記憶する記憶部と、前記階調値調整指示部で指示された第１の色材と第２の色材の階調値と、前記記憶部に記憶された各階調値に対する第１の色材と第２の色材の濃度値および各階調値に対する第１の色材と第２の色材を合わせた色材の濃度値とに基づいて、前記第１の色材と第２の色材を合わせた色材の階調値を予測する階調値予測部と、前記階調値予測部で予測した前記第１の色材と第２の色材を合わせた色材の階調値を表示する階調値表示部と、を有する。【選択図】 図２