公开(公告)号：EP1310376A3

公开(公告)日：2003-07-16

申请号：EP02257132.7

申请日：2002-10-15

申请人： Scitex Digital Printing, Inc.

发明人： Piatt, Michael J. ,  Wozniak, Terry ,  Mangan, Joseph P.

IPC分类号： B41J29/393 ,  B41J2/21 ,  H04N1/60 ,  H04N1/407

CPC分类号： B41J29/393 ,  B41J2/21

摘要： A system and method are provided for linearizing the tone scale of individual colors in a multi-color printing system, by deriving a prescribed tone scale of individual colors in a single or multi-color printing system. Full linear ink gradations are printed on multiple substrates, and a linearization table is generated with multiple points for each of the multiple substrates and/or ink gradations. A polynomial curve is fitted to the points of each linearization table to generate polynomial curves. At least one point in the polynomial curves is selected, that shows high variation from one curve to a next curve, and coefficients of a group of polynomial curves are plotted as functions of the value of the at least one point. The range of prediction can be as narrow or as broad as an application requires. Finally, a prescribed tone scale table is derived from the polynomial curves and the at least one point. A measured set of values can be compared against a predefined database, and the most applicable transformation is then selected. The data can be corrected to any suitable curve shape.

摘要翻译： 提供了一种系统和方法，用于通过在单色或多色打印系统中导出各种颜色的规定色阶来线性化多色打印系统中各个色彩的色阶。 全线性墨水渐变印刷在多个基板上，并且针对多个基板和/或墨水渐变中的每一个生成具有多个点的线性化表格。 将多项式曲线拟合到每个线性化表的点以生成多项式曲线。 选择多项式曲线中的至少一个点，其显示从一条曲线到下一条曲线的高度变化，并且一组多项式曲线的系数被绘制为至少一个点的值的函数。 预测的范围可以像应用程序所要求的一样窄或宽。 最后，从多项式曲线和至少一个点导出规定的色调比例表。 测量的一组值可以与预定义的数据库进行比较，然后选择最适用的转换。 数据可以被修正为任何合适的曲线形状。

公开(公告)号：EP1310376A2

公开(公告)日：2003-05-14

申请号：EP02257132.7

申请日：2002-10-15

申请人： Scitex Digital Printing, Inc.

发明人： Piatt, Michael J. ,  Wozniak, Terry ,  Mangan, Joseph P.

IPC分类号： B41J29/393 ,  B41J2/21 ,  H04N1/60 ,  H04N1/407

CPC分类号： B41J29/393 ,  B41J2/21

摘要： A system and method are provided for linearizing the tone scale of individual colors in a multi-color printing system, by deriving a prescribed tone scale of individual colors in a single or multi-color printing system. Full linear ink gradations are printed on multiple substrates, and a linearization table is generated with multiple points for each of the multiple substrates and/or ink gradations. A polynomial curve is fitted to the points of each linearization table to generate polynomial curves. At least one point in the polynomial curves is selected, that shows high variation from one curve to a next curve, and coefficients of a group of polynomial curves are plotted as functions of the value of the at least one point. The range of prediction can be as narrow or as broad as an application requires. Finally, a prescribed tone scale table is derived from the polynomial curves and the at least one point. A measured set of values can be compared against a predefined database, and the most applicable transformation is then selected. The data can be corrected to any suitable curve shape.

摘要翻译： 提供了一种系统和方法，用于通过在单色或多色打印系统中导出各种颜色的规定色阶来在多色打印系统中线性化各颜色的色阶。 全线性油墨色度印刷在多个基板上，并且为多个基板和/或墨水分级中的每一个产生多个点的线性化表。 多项式曲线拟合到每个线性化表的点以产生多项式曲线。 选择多项式曲线中的至少一个点，其显示从一个曲线到下一个曲线的高变化，并且将一组多项式曲线的系数绘制为至少一个点的值的函数。 预测的范围可以与应用程序所需的一样狭窄或宽泛。 最后，从多项式曲线和至少一个点导出规定的音阶表。 可以将一组测量值与预定义的数据库进行比较，然后选择最适用的变换。 数据可以修正为任何合适的曲线形状。