公开(公告)号：US5790273A

公开(公告)日：1998-08-04

申请号：US678623

申请日：1996-07-10

Applicant: Siegfried Horfarter

Inventor： Siegfried Horfarter

IPC: B41C1/14 ,  G03F7/12 ,  H04N1/387 ,  H04N1/405 ,  H04N1/52 ,  H04N1/46 ,  H04N1/40

CPC classification number: H04N1/3873 ,  H04N1/3877 ,  H04N1/4058

Abstract: Method and apparatus for producing a grey-shade stencil in which a pattern which is bounded by edges is transferred, with a grey-shade grid superimposed on it, into a radiation-sensitive base. The grid is extended continuously over edges of the pattern which come to rest on one another, in order to avoid strips being formed in the area of mutually adjacent edges of pattern reproductions.

Abstract translation: 用于产生灰色模板的方法和装置，其中以边缘为边界的图案以灰色网格叠加在其上被转印到辐射敏感的基底中。 网格连续地延伸到彼此搁置的图案的边缘上，以避免在图案复制品的相互相邻边缘的区域中形成条纹。

公开(公告)号：US5778091A

公开(公告)日：1998-07-07

申请号：US606167

申请日：1996-02-23

Applicant: Hiroshi Shibazaki ,  Masayuki Sasahara

Inventor： Hiroshi Shibazaki ,  Masayuki Sasahara

IPC: H04N1/405 ,  G06K15/02 ,  G06T5/00 ,  H04N1/40 ,  H04N1/46 ,  H04N1/52 ,  H04N1/60 ,  H04N1/21 ,  H04N1/23

CPC classification number: G06K15/02 ,  H04N1/52 ,  G06K2215/0094

Abstract: Each image area in a total image is assigned with a screen angle mode Ms indicating whether screen angles of magenta and cyan separations are to be adjusted or not. Screen angle data representing screen angles of magenta and cyan are produced according to the screen angle modes Ms. A dot signal for recording a halftone image of each of the magenta and the cyan separations is generated by comparing screen pattern data of a certain screen angle specified by the screen angle data with image data for each color separation. Accordingly, the present invention effectively prevents a moire in any image area included in a printing image.

公开(公告)号：US5767886A

公开(公告)日：1998-06-16

申请号：US616992

申请日：1996-03-14

Applicant: Haruko Kawakami ,  Hidekazu Sekizawa

Inventor： Haruko Kawakami ,  Hidekazu Sekizawa

IPC: B41J2/21 ,  G06T1/20 ,  H03M7/36 ,  H04N1/405 ,  H04N1/52 ,  H04N1/60 ,  B41J2/385 ,  B41J29/393 ,  G01D15/06 ,  G03G15/01

CPC classification number: H04N1/52

Abstract: An ink amount correction system is provided in a color image printer system for printing a full color image by mixing yellow, magenta, cyanogen and India ink amount signals. The ink amount correction system includes: a plurality of color ink amount correction circuits which include a quantization section for quantizing a color ink amount indicative signal representative of the amount of an ink of a predetermined color corresponding to each of picture elements of a primary color image; an error calculating section for calculating a quantization error between the input and output of the quantization section, to output as a quantization error signal; and a feedback correction section for adding the quantization error signal derived by the error calculating section, to the corresponding color ink amount indicative signal of the surrounding picture element, for correcting the ink amount indicative signal. The average value of the quantization error signal is added before the quantization of an ink amount indicative signal of a black ink having the maximum influence upon luminance. As a result, it is possible to reduce the dispersion of the degree of overlapping of inks for each of the picture elements to carry out the recording of good quality, in a case where a color image is printed by means of inks of a plurality of colors using error diffusion.

Abstract translation: 在彩色图像打印机系统中设置墨水量校正系统，用于通过混合黄色，​​品红色，氰色和印度墨水量信号来打印全色图像。 墨水量校正系统包括：多个彩色墨水量校正电路，其包括用于量化表示与原色图像的每个图像元素相对应的预定颜色的墨量的颜色墨水量指示信号的量化部分 ; 误差计算部分，用于计算量化部分的输入和输出之间的量化误差，作为量化误差信号输出; 以及反馈校正部分，用于将由误差计算部分导出的量化误差信号与周围图像元素的相应颜色墨水量指示信号相加，以校正墨量指示信号。 量化误差信号的平均值在对亮度影响最大的黑色墨水的墨量指示信号的量化之前相加。 结果，在通过多个墨水的油墨印刷彩色图像的情况下，可以减少每个图像元素的墨水的重叠程度的分散，从而进行良好的记录 颜色使用误差扩散。

公开(公告)号：US5739926A

公开(公告)日：1998-04-14

申请号：US477266

申请日：1995-06-07

Applicant: Kazuyoshi Takahashi ,  Yasuhiro Yamada

Inventor： Kazuyoshi Takahashi ,  Yasuhiro Yamada

IPC: B41J29/38 ,  G03G15/01 ,  H04N1/387 ,  H04N1/46 ,  H04N1/48 ,  H04N1/52 ,  H04N1/60 ,  G03F3/08 ,  G03F15/00

CPC classification number: H04N1/3872 ,  H04N1/46

Abstract: A system of transmitting and receiving image data comprising a number of pixel data, such as color copying machine or the like, comprises producing image control data regarding the image data to be transmitted on a transmission side; transmitting pixel data of n colors for a period of time when the pixel data of (n+m) colors (n and m are positive integers) can be sequentially transmitted and transmitting the image control data for a period of time when the pixel data of n colors is not transmitted in the period of time when the pixel data of (n+m) colors can be transmitted; producing the pixel data of (n+m) colors on the basis of the pixel data of n colors on a reception side; and executing an image process to the pixel data of n colors or the pixel data of (n+m) colors on the basis of the image control data.

Abstract translation: 发送和接收包括诸如彩色复印机等的多个像素数据的图像数据的系统包括产生关于要在发送侧发送的图像数据的图像控制数据; 在（n + m）个（n和m为正整数）的像素数据可以顺序地发送的情况下，发送n种颜色的像素数据，并在图像控制数据的一段时间内发送图像控制数据， 在可以发送（n + m）种颜色的像素数据的时间段内不发送n种颜色; 基于接收侧的n种颜色的像素数据产生（n + m）种颜色的像素数据; 并且基于图像控制数据对n种颜色的像素数据或（n + m）种颜色的像素数据执行图像处理。

公开(公告)号：US5734410A

公开(公告)日：1998-03-31

申请号：US717219

申请日：1996-09-26

Applicant: Akihiro Sadaki

Inventor： Akihiro Sadaki

IPC: B41J2/325 ,  B41J2/36 ,  B41J2/52 ,  H04N1/52 ,  B41J2/32

CPC classification number: B41J2/36 ,  B41J2/325 ,  H04N1/52

Abstract: By using a recording method in which a different plurality of blank dots are printed for each color in a thermal transfer recording apparatus, a printed sheet does not have visually recognizable white dots which are seen as high frequency noise, thereby creating a high quality printing record. Such thermal transfer recording apparatus has a conversion table for receiving a line display signal, a signal indicating whether a color density signal corresponds to an odd-numbered line or to an even-numbered line and an identification signal for identifying a respective color, and outputs a print signal for each color. The print signal converted by the conversion table indicates the locations of blank dots for each respective color, and different blank dots are assigned for each different color, thereby realizing a superior image quality.

Abstract translation: 通过使用在热转印记录装置中针对每种颜色印刷不同多个空白点的记录方法，印刷纸不具有视觉识别的白点，被视为高频噪声，从而形成高质量的打印记录 。 这种热转印记录装置具有用于接收行显示信号的转换表，指示颜色浓度信号是否对应于奇数行或偶数行的信号和用于识别各种颜色的识别信号，并且输出 每种颜色的打印信号。 通过转换表转换的打印信号表示各个颜色的空白点的位置，并为每个不同的颜色分配不同的空白点，从而实现了优异的图像质量。

公开(公告)号：US5732151A

公开(公告)日：1998-03-24

申请号：US891248

申请日：1997-07-10

Applicant: Eva-Maria Moon ,  Shane D. Wall ,  Thomas B. Pritchard

Inventor： Eva-Maria Moon ,  Shane D. Wall ,  Thomas B. Pritchard

IPC: H04N1/52 ,  H04N1/60 ,  G06K9/00

CPC classification number: H04N1/52 ,  H04N1/6019

Abstract: A method adapted for implementation in a computer system for correcting and half toning color data in a list of colors is provided. Starting with the first color in the list, color corrections are performed. Using traditional half toning methods, descriptions of the resulting printable dots for each position in the halftone matrix for that color are determined. Color corrections and half toning are repeated for each of the colors in the list. A lookup table is compiled. As each pixel of the image from which the list of colors was compiled is encountered, the printable dots are determined by reference to the lookup table.

Abstract translation: 提供了一种适用于在计算机系统中实现用于校正和调色列表中的颜色数据的方法。 从列表中的第一个颜色开始，执行颜色校正。 使用传统的半色调方法，确定针对该颜色的半色调矩阵中的每个位置的所得可印刷点的描述。 对于列表中的每种颜色重复颜色校正和半色调。 编译查找表。 当遇到编辑颜色列表的图像的每个像素时，通过参考查找表来确定可打印点。

公开(公告)号：US5712929A

公开(公告)日：1998-01-27

申请号：US326343

申请日：1994-10-20

Applicant: Naoto Kawamura ,  Hidejiro Kadowaki

Inventor： Naoto Kawamura ,  Hidejiro Kadowaki

IPC: H04N1/405 ,  H04N1/52 ,  G06K9/38

CPC classification number: H04N1/52 ,  H04N1/4058

Abstract: An image processing apparatus comprises an input device for inputting an image data, a first converter circuit for converting the input image signal to an analog image output and a second converter circuit for converting the input image data to a digital image output. The first converter circuit controls the analog image output in accordance with the output of the second converter circuit. The second converter circuit produces different digital signals in accordance with the input image data and has a threshold matrix to be compared with the input image data.

公开(公告)号：US5710871A

公开(公告)日：1998-01-20

申请号：US403442

申请日：1995-03-14

Applicant: Hironobu Tadenuma ,  Shuichi Ichinose

Inventor： Hironobu Tadenuma ,  Shuichi Ichinose

IPC: H04N1/407 ,  G06T5/00 ,  H04N1/52 ,  H04N1/60 ,  G06K15/00 ,  G03F3/08

CPC classification number: H04N1/6033

Abstract: A data correction subsystem for a color image processing system having a color image reading device and a color image printing device. A chart file is transmitted to the printing device so that the printing device produces a sample chart. Calibration data is calculated from read sample data so that the read sample data can be corrected to corresponding data in the chart file. The read sample data is obtained by causing the reading device to read the sample chart. Printing data to be transmitted to the printing device is corrected using the calibration data.

Abstract translation: 一种用于具有彩色图像读取装置和彩色图像打印装置的彩色图​​像处理系统的数据校正子系统。 图形文件被传送到打印装置，使得打印装置产生样本图。 从读取的样本数据计算校准数据，以便将读取的样本数据修正为图表文件中的相应数据。 通过使读取装置读取样本图来获得读取的样本数据。 使用校准数据来校正要发送到打印装置的打印数据。

公开(公告)号：US5675716A

公开(公告)日：1997-10-07

申请号：US320538

申请日：1994-10-11

Applicant: Joseph S. Shu

Inventor： Joseph S. Shu

IPC: B41J2/525 ,  G03G15/01 ,  G06T5/00 ,  G06T11/60 ,  H04N1/405 ,  H04N1/52 ,  H04N1/60 ,  G06K15/00 ,  G03F3/08 ,  H04N1/40

CPC classification number: H04N1/52

Abstract: A vivid color correction technique eliminates artifacts from a predetermined tonal area of a halftone image to thereby improve the color vividness of that image. According to this technique, pixel tonal values associated with input colors are initially examined to determine a maximum color value. After error diffusion halftoning, the resulting binary pixel values are collectively processed to generate inter-color information for comparison with a selected harmonic color cluster. If the inter-color information specifies a color that does not match one of the colors of the selected harmonic cluster, the inter-color information is "corrected" to reflect an acceptable output color.

Abstract translation: 生动的色彩校正技术消除了半色调图像的预定色调区域的伪影，从而提高了该图像的色彩鲜艳度。 根据该技术，最初检查与输入颜色相关联的像素色调值以确定最大颜色值。 在错误扩散半色调之后，所得到的二进制像素值被集中处理以产生颜色信息，以便与所选择的谐波颜色簇进行比较。 如果颜色间信息指定与所选择的谐波簇的颜色中的一种不匹配的颜色，则颜色信息被“校正”以反映可接受的输出颜色。

公开(公告)号：US5663810A

公开(公告)日：1997-09-02

申请号：US408299

申请日：1995-03-22

Applicant: Richard A. Kirk

Inventor： Richard A. Kirk

IPC: H04N1/52 ,  G06T5/00 ,  H04N1/405 ,  H04N1/40

CPC classification number: H04N1/4052

Abstract: In a method of producing a digital half-tone representation of an original image, wherein the representation is constituted by an array of output cell values representing the colour content of pixels of the original image, cell values are determined for successive output cells, for which cell values have not previously been determined. An output cell value is generated with reference to an input cell value related to the colour content of a corresponding pixel in the original image, and any error values propagated from previous iterations. Where the output cell value satisfies a predetermined condition, the effective colour content of a neighbourhood of previously determined output cell values is determined by addressing a look-up table containing a single value for each neighbourhood. An error value constituted by the difference between the effective colour content and the corresponding input cell value is determined and propagated for use in subsequent iterations.

Abstract translation: 在产生原始图像的数字半色调表示的方法中，其中所述表示由表示原始图像的像素的颜色内容的输出单元格的数组构成，为连续输出单元确定单元格值 以前没有确定单元格值。 参考与原始图像中的对应像素的颜色内容相关的输入单元值以及从先前迭代传播的任何误差值来生成输出单元值。 在输出单元值满足预定条件的情况下，通过寻址包含每个邻域的单个值的查找表来确定先前确定的输出单元值的邻域的有效颜色内容。 确定并传播由有效色彩内容和对应的输入单元格值之间的差异构成的误差值，以供后续迭代使用。