公开(公告)号：US5535672A

公开(公告)日：1996-07-16

申请号：US314841

申请日：1994-09-29

申请人： Soichi Kuwahara

发明人： Soichi Kuwahara

IPC分类号： B41C1/05 ,  H04N1/405 ,  H04N1/52 ,  B41N1/06

CPC分类号： H04N1/4058 ,  B41C1/05 ,  H04N1/52

摘要： To provide a laser plate making apparatus having a simple construction capable of reducing generation of Moire. The slant line R1 formed of the starting position of the formed arbitrary recess 7 which is formed on the press plate 5a or the like in the main scanning direction F is formed so as not to be coincident with the slant line R2 formed of the starting position in the main scanning direction F of the recess 7 which is located at the next position in the sub scanning direction A. Therefore, when a multicolor printing is carried out by using the press plate 5Pa thus formed or the like, manifestation of Moire is reduced. Particularly, when the line R3 connecting the predetermined point within the arbitrary recess 7 to the point located at the position corresponding to the predetermined point in the recess 7 which is located at adjacent position in the sub scanning direction A, is set to a constant angle .phi. different from the irradiation angle .theta. of the laser beam, the Moire is further reduced.

摘要翻译： 提供具有能够减少莫尔的产生的简单结构的激光制版装置。 形成在形成在主扫描方向F上的压板5a等上的形成的任意凹部7的起始位置的倾斜线R1形成为与由起始位置形成的倾斜线R2不一致 在位于副扫描方向A的下一个位置的凹部7的主扫描方向F上。因此，当通过使用如此形成的压板5Pa进行多色打印等时，莫尔的表现减少 。 特别地，当连接任意凹部7内的预定点的线R3与位于副扫描方向A的相邻位置的凹部7中与预定点相对应的位置处的点被设定为一定角度 phi与激光束的照射角度θ不同，Moiré进一步减小。

公开(公告)号：US5510910A

公开(公告)日：1996-04-23

申请号：US238118

申请日：1994-05-03

申请人： Francis E. Bockman ,  Paul H. Dillinger

发明人： Francis E. Bockman ,  Paul H. Dillinger

IPC分类号： H04N1/46 ,  H04N1/52 ,  H04N1/60

CPC分类号： H04N1/52 ,  H04N1/60 ,  H04N1/6016 ,  H04N1/6022 ,  H04N1/6058

摘要： A technique of merging or "matching" hue pages of a CRT and printer is used to map CRT control signals through a common perceptual space into printer control signals. The system (1) receives a color specification expressed as CRT control signals, (2) locates the specified color within the CRT perceptual gamut, (3) normalizes the two gamuts in perceptual space, (4) determines the relative position of the same color in the normalized CRT gamut, (5) declares that position to be the relative position of that color in the normalized printer gamut as well, (6) unfolds the normalization to determine the absolute position of the color in the actual printer gamut, (7) expresses that position in terms of printer-control signals, and then (8) applies those signals to the printer, to print the specified color. As a result that color, and color changes, specified in terms of CRT control signals are tracked in terms of both printer control signals and actual printer performance. The two device gamuts are in effect mapped to each other; the full gamuts of both are in effect merged. This new mapping preserves relative positions in color space--and thus the capability of the printer to reproduce distinctions between colors seen on the CRT that appear very closely similar. Such discrimination between colors very adjacent in color space is supported nearly throughout gamuts of both devices, even very near the lightness extrema and maximum-saturation point on a hue page. To facilitate processing, the normalized characterizations for the CRT and printer gamuts (taken as triangular) are approximated for each of 360 hue pages by single-point data representing lightness and chroma at the saturation point--or normalized lightness at that point--plus two common lightness extrema for the gamut solid.

摘要翻译： 将CRT和打印机的合并或“匹配”色调页面的技术用于将CRT控制信号通过公共感知空间映射到打印机控制信号中。 系统（1）接收以CRT控制信号表示的颜色规格，（2）将指定颜色定位在CRT感知色域内，（3）在感知空间中归一化两个色域，（4）确定相同颜色的相对位置 在归一化的CRT色域中，（5）也将该颜色的位置声明为归一化打印机色域中的该颜色的相对位置，（6）展开归一化以确定实际打印机色域中的颜色的绝对位置，（7 ）表示打印机控制信号的位置，然后（8）将这些信号应用于打印机，以打印指定的颜色。 因此，根据打印机控制信号和实际打印机性能来跟踪CRT控制信号方面的颜色和颜色变化。 两个设备色域实际映射到对方; 两者的全部颜色都被合并。 这个新映射保留了颜色空间中的相对位置，因此打印机能够再现出现在非常接近相似的CRT上看到的颜色之间的区别。 在色彩空间非常相邻的颜色之间的这种区分几乎遍及两个装置的色域，甚至在色相页上的亮度极值和最大饱和度点附近都被支持。 为了便于处理，CRT和打印机色域（被视为三角形）的归一化表征通过单点数据近似于每个360色调页面，该点数据表示在该点处的饱和点或标准化亮度处的亮度和色度 - 加上两个常见的 亮度极值为色域固体。

公开(公告)号：US5485283A

公开(公告)日：1996-01-16

申请号：US255814

申请日：1994-06-07

申请人： Yoji Kaneko

发明人： Yoji Kaneko

IPC分类号： H04N1/00 ,  G09G5/00 ,  H04N1/333 ,  H04N1/41 ,  H04N1/46 ,  H04N1/48 ,  H04N1/52 ,  H04N1/64 ,  H04N1/56

CPC分类号： H04N1/333 ,  H04N1/33323 ,  H04N1/46 ,  H04N1/64 ,  H04N2201/33357 ,  H04N2201/33378

摘要： In a color facsimile apparatus, a color scanner converts an original image into color image data, and a transmitter transmits the color image data in either a color transmission mode or a monochromatic transmission mode. A processor processes the color image data as processed color image data or processed monochrome image data according to the transmission mode of the transmitter. The data is displayed on a monitor, prior to transmission, in a first mode as a monochrome image and in a second mode as a color image.

摘要翻译： 在彩色传真装置中，彩色扫描器将原始图像转换为彩色图像数据，并且发送器以彩色发送模式或单色发送模式发送彩色图像数据。 处理器根据发射机的传输模式处理彩色图像数据作为经处理的彩色图像数据或经处理的单色图像数据。 数据在传输之前在监视器上以第一模式显示为单色图像，在第二模式中显示为彩色图像。

公开(公告)号：US5475800A

公开(公告)日：1995-12-12

申请号：US954787

申请日：1992-09-30

申请人： Ronald J. Vaughn ,  John R. Matthews

发明人： Ronald J. Vaughn ,  John R. Matthews

IPC分类号： B41J2/21 ,  B41J2/485 ,  B41J5/30 ,  G06K15/10 ,  H04N1/23 ,  H04N1/46 ,  H04N1/52 ,  H04N1/60

CPC分类号： G06K15/102 ,  H04N1/52 ,  G06K2215/0071 ,  G06K2215/0094

摘要： In liquid-ink color graphics printing, true black ink is preferred over composite black wherever possible, but poor print quality results from printing black ink too close to color ink, due to limitations in present ink chemistry. A method of processing color bit-map graphics data in a four-color liquid-ink printing system, so as to maximize use of black ink while maintaining a minimum spacing between black and color inks is disclosed. The input data is stored in CMY bit-map color planes. Preliminarily, data representing composite black is moved from the color planes into a K plane for printing by a true black pen. The data is examined to detect any black ink within the minimum spacing from color ink. The examination is expedited by partitioning the data into blocks, and indicating each block as a color block, a black block, or a white block. These indications are conveniently stored in a color table and a black table, in which each block of data is represented by a single bit. Tests for black adjacent color are conducted at the block level, i.e. in the tables, rather than at the individual bit level. Where a black block is detected adjacent a color block, the spacing violation is corrected by moving the corresponding block of data from the K plane back into the color planes for printing as composite black. After such correction, the data is re-checked to detect any new violation(s) resulting from the correction. The process repeated until no minimum spacing violations are found.

摘要翻译： 在液墨彩色图形印刷中，真正的黑色墨水优于复合黑色，尽管由于本发明的油墨化学性质的限制，印刷黑色油墨与彩色油墨太接近，导致打印质量差。 公开了一种在四色液体油墨打印系统中处理彩色位图图形数据的方法，以便最大限度地利用黑色油墨同时保持黑色和彩色油墨之间的最小间距。 输入数据存储在CMY位图颜色平面中。 最初，表示复合黑色的数据从彩色平面移动到K平面，用真黑色笔进行打印。 检查数据以检测与彩色墨水最小间隔内的任何黑色墨水。 通过将数据分割成块，并将每个块指示为颜色块，黑色块或白色块来加快检查。 这些指示方便地存储在颜色表和黑色表中，其中每个数据块由单个位表示。 黑色相邻颜色的测试在块级进行，即在表中进行，而不是在单独的位级进行。 在与色块相邻检测到黑色块的情况下，通过将相应的数据块从K平面移回到彩色平面进行打印作为复合黑色来校正间隔冲突。 经过这样的修正后，重新检查数据，以检测纠正导致的任何新的违规行为。 该过程重复，直到没有发现最小间距违规。

公开(公告)号：US5473446A

公开(公告)日：1995-12-05

申请号：US189541

申请日：1994-01-27

申请人： Alexander Perumal, Jr. ,  Paul H. Dillinger

发明人： Alexander Perumal, Jr. ,  Paul H. Dillinger

IPC分类号： B41J2/525 ,  B41J5/30 ,  H04N1/46 ,  H04N1/52 ,  H04N1/60 ,  H04N1/64

CPC分类号： H04N1/60 ,  H04N1/52 ,  H04N1/6016 ,  H04N1/6022 ,  H04N1/6058

摘要： Provided is a system and method for selectively enabling a printer to deposit on a sheet cyan, magenta, yellow and black (C,M,Y and K) primary or black color dots at each of the plurality of pixel locations to produce a color image. The system comprises a memory for storing C, M, Y and K values for each pixel in the color image and a processor for controlling selective deposition of the C, M, Y and K colors. The system includes a memory for holding a color vector for each pixel, respectively in the color image; a memory for storing parameters of a dither cell; and a processor coupled to the memory for comparing the dither cell with each color vector, to select a color component to print at the corresponding pixel location based on the comparison. The system provides a halftoning technique that produces print quality near error diffusion quality with the speed of a dither by dithering on a color vector. The replacement of black and secondary colors by the system produces better print quality than other dither techniques.

摘要翻译： 提供了一种用于选择性地使得打印机能够在多个像素位置中的每一个处沉积在青色，品红色，黄色和黑色（C，M，Y和K）原色或黑色色点上的片材以产生彩色图像的系统和方法 。 该系统包括用于存储彩色图像中的每个像素的C，M，Y和K值的存储器和用于控制C，M，Y和K颜色的选择性沉积的处理器。 该系统包括分别在彩色图像中保持每个像素的颜色矢量的存储器; 用于存储抖动单元的参数的存储器; 以及处理器，其耦合到所述存储器，用于将所述抖动单元与每个颜色矢量进行比较，以基于所述比较来选择在相应像素位置处打印的颜色分量。 该系统提供了一种半色调技术，通过在颜色矢量上抖动来产生抖动速度，误差扩散质量附近产生打印质量。 系统替换黑色和次色可以产生比其他抖动技术更好的打印质量。

公开(公告)号：US5455682A

公开(公告)日：1995-10-03

申请号：US92091

申请日：1993-07-16

申请人： Kunio Ikuta

发明人： Kunio Ikuta

IPC分类号： H04N1/405 ,  G03F5/22 ,  H04N1/46 ,  H04N1/52 ,  H04N1/60 ,  H04N1/21

CPC分类号： H04N1/52 ,  G03F5/22

摘要： The present invention produces a set of improved halftone images which effectively prevents occurrence of rosette moire. A plurality of parallelograms can be formed from three apexes consisting of an arbitrary first apex of a reference triangle RT1, a middle point of the side of the triangle facing to the first apex, and one of the other two apexes of the triangle. One of the parallelograms is selected as a unit area for one halftone dot. The unit area is virtually laid out repeatedly on an image plane, and one halftone dot is located with respect to each unit area. Each halftone dot can be located at the center of the unit area or at any desirable position in the unit area.

摘要翻译： 本发明产生一组改进的半色调图像，其有效地防止了玫瑰花纹莫尔迹的发生。 可以由三个顶点形成多个平行四边形，三个顶点由参考三角形RT1的任意第一顶点，三角形面向第一顶点的中点和三角形的另外两个顶点之一组成。 选择一个平行四边形作为一个半色调点的单位面积。 单位面积实际上在图像平面上布置，并且相对于每个单位区域设置一个半色调点。 每个半色调点可以位于单元区域的中心或单元区域中的任何期望位置。

公开(公告)号：US5404156A

公开(公告)日：1995-04-04

申请号：US93586

申请日：1993-07-19

申请人： Kunio Yamada ,  Akira Ishii

发明人： Kunio Yamada ,  Akira Ishii

IPC分类号： H04N1/52 ,  H04N1/40 ,  G03G15/01

CPC分类号： H04N1/52

摘要： A full-color image printing method and apparatus operate to form mono-color toned images of individual color components using multiple, e.g., four, mono-color imaging units provided in correspondence to the color components and single-lined screen processors provided in correspondence to the imaging units, and overlap the mono-color toned images sequentially to produce a full-color image on a sheet of print paper. The screen angle is made different among the mono-color toned images and the line pitch of the screen is made virtually equal for all mono-color toned images with the intention of retaining a high-grade color quality and preventing the degradation of picture quality such as a degraded tone quality.

摘要翻译： 一种全色图像打印方法和装置，其操作是使用多个（例如四个）单色成像单元来形成单色调色图像，该单色彩色成像单元对应于对应于颜色成分和单列屏幕处理器 成像单元，并且顺序地与单色调色图像重叠，以在一张打印纸上产生全色图像。 在单色调色图像中的屏幕角度不同，并且对于所有单色调色图像，屏幕的线间距实际上相等，其目的是保持高级颜色质量并防止图像质量的劣化，例如 作为一种退化的音质。

公开(公告)号：US5402245A

公开(公告)日：1995-03-28

申请号：US187567

申请日：1994-01-27

申请人： Ricardo J. Motta ,  Andrew E. Fitzhugh ,  Michael D. McGuire ,  Gary J. Dispoto

发明人： Ricardo J. Motta ,  Andrew E. Fitzhugh ,  Michael D. McGuire ,  Gary J. Dispoto

IPC分类号： B41J2/21 ,  B41J2/525 ,  H04N1/52 ,  H04N1/60 ,  H04N1/21

CPC分类号： H04N1/52 ,  H04N1/6022

摘要： A system selectively enables a printer to deposit on a sheet C, M, Y and K color dots at each of the plurality of pixel locations to produce a color image. The system comprises a memory for storing C, M, Y and K color values for each pixel in the color image and a processor for controlling selective deposition of the C, M, Y and K colors. The processor determines a gray value for each pixel location from values stored in the C, M, and Y color planes. The processor subtracts the determined gray value from the C, M, and Y values which correspond to the pixel location and then determines a relationship of the gray value to a non-linear function and in dependence upon the relationship alters the C, M and Y pixel values accordingly. The processor either (1) adds the gray value back to the C, M, and Y values for the pixel location, or (2) adds a first portion of the gray value to the C, M, and Y values for the pixel location and a second portion of the gray value to the K value for the pixel location; or (3) adds all of the gray value to a K value for the pixel location. As a result, the C, M, Y and K values are altered in accordance with the determined gray value. The altered color values are then prioritized and the processor determines which colors should be printed at each pixel location and diffuses color error values to neighboring pixel locations after such determination. The prioritization procedure enables print priority to be given to either the brightest color dot or to the color dot that is most visible to the human eye.

摘要翻译： 系统选择性地使得打印机能够在多个像素位置中的每个像素位置处沉积在片材C，M，Y和K上的色点，以产生彩色图像。 该系统包括用于存储彩色图像中每个像素的C，M，Y和K颜色值的存储器和用于控制C，M，Y和K颜色的选择性沉积的处理器。 处理器根据存储在C，M和Y色彩平面中的值确定每个像素位置的灰度值。 处理器从对应于像素位置的C，M和Y值中减去确定的灰度值，然后确定灰度值与非线性函数的关系，并且根据关系改变C，M和Y 像素值相应。 处理器（1）将灰度值添加回像素位置的C，M和Y值，或者（2）将灰度值的第一部分添加到像素位置的C，M和Y值 以及所述灰度值的第二部分为所述像素位置的K值; 或者（3）将所有灰度值添加到像素位置的K值。 结果，C，M，Y和K值根据确定的灰度值而改变。 改变的颜色值然后被优先化，并且处理器确定在每个像素位置应该打印哪些颜色，并且在这样的确定之后将颜色误差值扩散到相邻像素位置。 优先顺序使打印优先级能够被赋予最亮的颜色点或人眼最为可见的颜色点。

公开(公告)号：US5377024A

公开(公告)日：1994-12-27

申请号：US878931

申请日：1992-05-04

申请人： Paul H. Dillinger

发明人： Paul H. Dillinger

IPC分类号： H04N1/46 ,  H04N1/52 ,  H04N1/60

CPC分类号： H04N1/52 ,  H04N1/60 ,  H04N1/6016 ,  H04N1/6022 ,  H04N1/6058

摘要： The invention is for use with a visible medium capable of light reflection etc., and for use with a color-image source that defines a desired color. Here a device for causing the medium to appear colored includes a gray-scale subsystem to achromatically suppress a stated fraction of the reflection; and at least two device-primary subsystems to cause selective reflection of light of two associated device-primary colors. Even if the device, as originally made, in effect uses the gray-scale subsystem to help construct colors, or the device-primary subsystems to help form gray-scale "values", such cross-dependency is essentially removed. A programmed processor resolves the desired-rendition information into Fraction-Black, Fraction-Colorant, and hue. Fraction-Black information is applied exclusively to control only the gray-scale subsystem; Fraction-Colorant to control only the device-primary subsystem; and hue to select a dominant and a subordinate primary subsystem and as between them apportion the Fraction-Colorant.

摘要翻译： 本发明用于能够进行光反射等的可见介质，并且与用于定义所需颜色的彩色图像源一起使用。 这里用于使介质显色的装置包括灰度级子系统，用于消除反射的所述分数; 以及至少两个设备主要子系统，以引起对两个相关联的设备原色的光的选择性反射。 即使最初制造的设备实际上使用灰度子系统来帮助构建颜色，或者设备主子系统帮助形成灰度“值”，这种交叉依赖性基本上被去除。 编程处理器将所需的再现信息解析为分数 - 黑色，分数 - 着色剂和色调。 分数黑信息仅用于控制灰度子系统; 分级着色剂仅控制设备 - 主要子系统; 并选择一个主导和次要的主要子系统，并在它们之间分配分数 - 着色剂。

公开(公告)号：US5296935A

公开(公告)日：1994-03-22

申请号：US766765

申请日：1991-09-27

申请人： Yoav Bresler

发明人： Yoav Bresler

IPC分类号： G09G5/00 ,  G06F17/15 ,  G06K15/02 ,  G06T1/00 ,  G06T5/20 ,  G06T11/60 ,  G09G5/02 ,  H04N1/46 ,  H04N1/52 ,  H04N1/60

CPC分类号： G06K15/02 ,  G06F17/15 ,  G06T5/20 ,  H04N1/52 ,  H04N1/6033 ,  G06K2215/0037 ,  G06K2215/0094

摘要： A method and apparatus for adapting a digital representation of a first color image for output representation by an output device having spatial and color characteristics are disclosed. The apparatus includes apparatus for modifying the spatial characteristics of the digital representation of the first color image and the color characteristics of the first color image to correspond to the spatial and color characteristics of the output device such that, in an output representation, the color characteristics of the first color image would be substantially preserved. The method includes the step of modifying the spatial characteristics of the digital representation of the first color image and the color characteristics of the first color image to correspond to the spatial and color characteristics of the output device such that, in an output representation, the color characteristics of the first color image would be substantially preserved.

摘要翻译： 公开了一种用于通过具有空间和颜色特性的输出装置来适应用于输出表示的第一彩色图像的数字表示的方法和装置。 该装置包括用于修改第一彩色图像的数字表示的空间特性和第一彩色图像的颜色特性以对应于输出设备的空间和颜色特性的设备，使得在输出表示中，颜色特征 将基本上保留第一个彩色图像。 该方法包括以下步骤：修改第一彩色图像的数字表示和第一彩色图像的颜色特性的空间特性，以对应于输出设备的空间和颜色特性，使得在输出表示中，颜色 将基本上保留第一彩色图像的特性。