公开(公告)号：US5806426A

公开(公告)日：1998-09-15

申请号：US810917

申请日：1997-03-05

Applicant: Luc Choulet

Inventor： Luc Choulet

IPC: B41M1/08 ,  B41F5/22 ,  B41F7/08 ,  B41M1/14 ,  B41M1/28

CPC classification number: B41F5/22 ,  B41F7/08

Abstract: A method of printing a color image on a medium, the method comprising the following steps: separating the image to be reproduced into a composition of colored unit areas, said unit areas being disposed in a predetermined distribution, the color of each unit area being selected from a predetermined set of base colors and a predetermined set of tones of said base colors, the number of tones for at least one of the base colors being greater than or equal to three, the base color and the tone allocated to each of said unit areas being selected so that said composition of colored unit areas visually reconstitutes the image to be reproduced; and printing said composition of colored unit areas on said medium by means of inks whose hues are selected, taking into account the color of said support, so as to be capable of reproducing said base colors and the tones thereof during printing, the tone of a base color allocated to a given unit area being obtained during printing by acting on the proportion of each ink within the corresponding unit area on the medium.

Abstract translation: 一种在介质上打印彩色图像的方法，所述方法包括以下步骤：将要再现的图像分离成彩色单位区域的组成，所述单位区域以预定分布布置，选择每个单位区域的颜色 从基本颜色的预定集合和所述基色的预定音调组合，基色中的至少一个的色调数大于或等于3，分配给每个所述单元的基色和色调 所选择的区域使得所述彩色单元区域的组合物可视地重构要再现的图像; 并且通过考虑所述支撑件的颜色，考虑所述支撑件的颜色，通过选择了其色调的油墨在所述介质上打印所述彩色单元区域的所述组成，以便能够在打印期间再现所述基色和其色调， 分配给在打印期间通过作用在介质上的相应单位区域内的每种墨水的比例而获得的给定单位面积的基础颜色。

公开(公告)号：US06538772B1

公开(公告)日：2003-03-25

申请号：US09300486

申请日：1999-04-28

Applicant: Luc Choulet

Inventor： Luc Choulet

IPC: H04N1405

CPC classification number: H04N1/4055

Abstract: The invention relates to a conversion method for generating a half-tone image from a digitized image comprising a set of pixels each having a tone value, each pixel of the digitized image being associated with a base cell of the half-tone image, which base cell is subdivided into as many unit zones as there are non-zero tone values. The method comprises steps consisting in analyzing the digitized image in analysis windows and in converting the tone value in compliance with predetermined distribution and filling order of unit zones that takes account of the printing technique used for reproducing the half-tone image on a medium.

Abstract translation: 本发明涉及一种用于从数字化图像生成半色调图像的转换方法，该数字化图像包括一组每个具有色调值的像素，数字化图像的每个像素与半色调图像的基本单元相关联，该基底 单元被细分为与非零音调值相同的单元区。 该方法包括以下步骤：分析分析窗口中的数字化图像，并根据在介质上再现半色调图像的打印技术考虑到单位区域的预定分布和填充顺序来转换色调值。