公开(公告)号：US06786565B2

公开(公告)日：2004-09-07

申请号：US09962808

申请日：2001-09-24

Applicant: Adam I. Pinard ,  James M. Enge ,  Bradley S. Winslow ,  Andrew Masia ,  Foster M. Fargo, Jr.

Inventor： Adam I. Pinard ,  James M. Enge ,  Bradley S. Winslow ,  Andrew Masia ,  Foster M. Fargo, Jr.

IPC: B41J2205

CPC classification number: H04N1/405 ,  H04N1/52

Abstract: One general aspect of the invention provides for creating half-tone ink-jet proofs on print-enhanced sheets based on an effective image cell pitch that substantially matches a cell pitch used to create press plates. Print process variables can be adjusted for the ink-jet proofing printer based on received color matching information. These adjustments can define preprint ink mixing ratios that allow at least some image cells to be printed with ink mixtures. Or they can define sub-area printing values that allow at least some dots to be printed with areas of different inks.

Abstract translation: 本发明的一个总体方面提供了基于与用于产生压板的单元间距基本匹配的有效图像单元间距，在印刷增强片材上创建半色调喷墨证明。 可以根据接收到的颜色匹配信息为喷墨打样打印机调整打印过程变量。 这些调整可以定义预印油墨混合比，允许使用油墨混合物印刷至少一些图像单元。 或者它们可以定义允许至少一些点印刷不同墨水区域的子区域打印值。

公开(公告)号：US5689623A

公开(公告)日：1997-11-18

申请号：US410785

申请日：1995-03-27

Applicant: Adam I. Pinard

Inventor： Adam I. Pinard

IPC: H04N1/405 ,  G06K15/00 ,  H04N1/40

CPC classification number: H04N1/4051

Abstract: A spread spectrum digital screening mask and a method and system for digital screening a continuous tone image with the spread spectrum digital screening mask. The mask is characterized in the frequency domain by a function in magnitude independent of angle within a band of frequencies between a minimum frequency and a maximum frequency. The mask may be further characterized by its thresholded binary planes at each of a plurality of predetermined threshold values. The binary planes are characterized in frequency domain by magnitudes primarily distributed within the band of frequencies. For each binary plane, the number of pixels having one of the binary values divided by the total number of pixels in the binary plane equals a fraction determined by the predetermined threshold value of the binary plane divided by the maximum threshold value.

Abstract translation: 一种扩频数字屏蔽掩模，以及利用扩频数字屏蔽掩模对连续色调图像进行数字筛选的方法和系统。 该掩模的特征在于频域上的功能，其幅度与最小频率和最大频率之间的频带内的角度无关。 掩模可以进一步的特征在于其在多个预定阈值中的每一个处的阈值二进制平面。 二进制平面以频率为特征，主要分布在频带内。 对于每个二进制平面，具有二进制值中的一个除以二进制平面中的总像素数的像素的数量等于由二进制平面的预定阈值除以最大阈值所确定的分数。