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公开(公告)号：US5978098A
公开(公告)日：1999-11-02
申请号：US829304
申请日：1997-03-31
CPC分类号： G06T9/005
摘要： An image compression method for encoding gradation image data for use in, for example, a printer or a copying machine handling the gradation image. When a difference between two representative values in one block E)f the image data is less than a predetermined amount, a block code made up of a single piece of gradation data and one pixel array pattern is generated. When the difference is not less than the predetermined amount, the representative values are replaced by any of sixteen substitute values, and a block code is formed to include two gray scale data each of four bits and a single pixel array pattern, thereby realizing coding compression of the image information.
摘要翻译： 一种用于编码用于例如处理灰度图像的打印机或复印机的灰度图像数据的图像压缩方法。 当图像数据在一个块E）中的两个代表值之间的差小于预定量时，产生由单个灰度数据和一个像素阵列图案组成的块码。 当该差不小于预定量时，代表值由十六个替代值中的任何一个代替，并且块码形成为包括四个比特和单个像素阵列模式中的两个灰度数据，从而实现编码压缩 的图像信息。
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公开(公告)号：US06924819B2
公开(公告)日：2005-08-02
申请号：US10706905
申请日：2003-11-14
CPC分类号： H04N1/52 , H04N1/6022
摘要： An image processor includes: a color conversion unit for converting an input signal to color signals of at least four colors; a gamma correction unit for performing gamma correction on the color signals; a binarization unit for binarizing the color signals through comparison with a threshold value; a superimposing unit for superimposing a color signal of at least one color but of the binarized color signals on another color signal to convert the signals to a superimposed color signal; logical operation unit for performing a logical operation previously defined for an image of three or fewer colors on the superimposed color signal; and a separator for separating color signals as an output of the logical operation unit into separated color signals of at least four colors.
摘要翻译： 图像处理器包括：颜色转换单元，用于将输入信号转换成至少四种颜色的颜色信号; 伽马校正单元，用于对颜色信号进行伽马校正; 二值化单元，用于通过与阈值比较来二值化颜色信号; 叠加单元，用于将至少一种颜色的颜色信号与二值化颜色信号的颜色信号叠加在另一种颜色信号上，以将该信号转换为叠加的颜色信号; 逻辑运算单元，用于对叠加的彩色信号进行三种或更少颜色的图像预先定义的逻辑运算; 以及分离器，用于将作为逻辑运算单元的输出的色信号分离为具有至少四种颜色的分离色彩信号。
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3.发明授权Reversible coding method, reversible coding apparatus, and memory medium used therein 失效可逆编码方法，可逆编码装置和其中使用的存储介质公开(公告)号：US06611620B1
公开(公告)日：2003-08-26
申请号：US09384616
申请日：1999-08-27
IPC分类号： G06K936
CPC分类号： H04N19/593
摘要： Still color image data is separated into plural planes, and pixels of each plane are processed predictive coding within plane and/or between planes, and the predictive error data is modified by using the correlation of predictive errors within plane and/or between planes, and the modified data is coded by entropy coding so as to curtail the quantity of data, thereby realizing high speed and efficient predictive coding.
摘要翻译： 静态彩色图像数据被分成多个平面，并且每个平面的像素被处理在平面内和/或平面之间的预测编码，并且通过使用平面内和/或平面之间的预测误差的相关性修改预测误差数据，以及 通过熵编码来对修改后的数据进行编码，以减少数据量，从而实现高速，高效的预测编码。
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4.发明授权
公开(公告)号：US5357354A
公开(公告)日：1994-10-18
申请号：US3864
申请日：1993-01-11
申请人： Masahiko Matsunawa , Seiichiro Hiratsuka , Koji Washio , Hiroshi Tokunaga , Tadao Kishimoto , Takashi Hasebe
发明人： Masahiko Matsunawa , Seiichiro Hiratsuka , Koji Washio , Hiroshi Tokunaga , Tadao Kishimoto , Takashi Hasebe
CPC分类号： H04N1/6027 , H04N1/60 , H04N1/6016
摘要： An image processing apparatus for processing a digital color signal, given from outside the image processing apparatus, into a digital color recording signal, comprising; a color code generator for generating a color code signal representing a color of a digital pixel image signal, and a color reproduction unit for generating a color recording signal by processing another digital pixel image signal, in which these two digital pixel image signals are processed separately.
摘要翻译： 一种用于处理从图像处理装置外部给出的数字彩色信号的数字彩色记录信号的图像处理装置，包括： 用于产生表示数字像素图像信号的颜色的颜色代码信号的颜色代码发生器和用于通过处理另外的数字像素图像信号来生成颜色记录信号的颜色再现单元，其中分别处理这两个数字像素图像信号 。
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5.发明授权Apparatus for multicolor image forming wherein image forming conditions are adjusted based on reference images 失效用于多色成像的装置，其中基于参考图像调整图像形成条件
公开(公告)号：US4970536A
公开(公告)日：1990-11-13
申请号：US206944
申请日：1988-06-09
IPC分类号： G03G13/01
CPC分类号： G03G13/01 , G03G2215/00042 , G03G2215/00063
摘要： An apparatus having a plurality of developing devices for forming a multiple toner picture image composed of a plurality of layer toner picture images prepared from developed latent picture images formed on an image retainer by turning the image retainer a plurality of times. In the apparatus, latent reference images of different colors are formed on regions of the image retainer based on reference signals and the plurality of developing devices are used to develop the latent reference images to form a plurality of reference toner images. The data derived from the reference toner images is used to set up the image-forming conditions for forming a latent picture image on a common region of the image retainer, based on picture image signals received by the apparatus, when the toner picture image is formed on the image retainer.This application is a continuation of U.S. Ser. No. 849,709, filed Apr. 9, 1986, now abandoned, which in turn is a division of U.S. Ser. No. 757,519, filed July 19, 1984, now abandoned.
摘要翻译： 一种具有多个显影装置的装置，用于形成多个调色剂图像，所述多个调色剂图像由通过多次转动图像保持器而形成在图像保持器上的显影的潜像图像准备的多层调色剂图像组成。 在该装置中，基于参考信号在图像保持器的区域上形成不同颜色的潜在参考图像，并且使用多个显影装置来显影潜在的参考图像以形成多个参考调色剂图像。 从基准调色剂图像得到的数据用于在形成调色剂图像时基于由设备接收到的图像信号来建立用于在图像保持器的公共区域上形成潜像图像的图像形成条件 在图像保持器上。 本申请是美国序幕的延续。 1986年4月9日提交的第849,709号现在已经放弃了，而这又是美国司令部的一个部门。 1984年7月19日提交的第757,519号，现已放弃。
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公开(公告)号：US4903142A
公开(公告)日：1990-02-20
申请号：US372159
申请日：1989-06-27
CPC分类号： H04N1/40075
摘要： The present invention provides an image processing apparatus for estimating a halftone image from an original binary coded image, wherein there are provided a plurality of line memories for introducing the original binary coded image data and for transferring the data into a shift-register being set therein plural kinds of scanning windows, a computing circuit for counting black pixels within each of the plural kinds of scanning windows, a density pattern-discriminating circuit for performing the comparison judgment between the original binary image and the rebinary image based on the computed value, a conditional formula circuit for performing conditional inequality algorism, and a window judgment circuit having a predetermined truth table for selecting one optimum scanning window.
摘要翻译： 本发明提供了一种用于从原始二进制编码图像估计半色调图像的图像处理装置，其中设置有用于引入原始二进制编码图像数据并将数据传送到其中设置的移位寄存器的多个行存储器 多种扫描窗口，用于计算多种扫描窗口中的每一种的黑色像素的计算电路，用于根据计算值执行原始二值图像与重新绘制图像之间的比较判断的浓度图案鉴别电路， 用于执行条件不等式算法的条件公式电路，以及具有用于选择一个最佳扫描窗口的预定真值表的窗口判断电路。
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公开(公告)号：US4803514A
公开(公告)日：1989-02-07
申请号：US874177
申请日：1986-08-05
摘要： Herein disclosed are method of and apparatus for forming a multicolor image by repeating such whole-surface exposure and development of a multicolor image forming photosensitive member (4), which has: a photoconductive layer (1) sandwiched vertically between an insulating layer (2) and a conductive layer (3), at least one of said insulating layer (2) and said conductive layer (3) being light transmissive and being composed of a plurality of kinds of filters, as will produce a potential pattern in a portion of a specific kind one of said filters, after said photosensitive member (4) has been charged and subjected to an image exposure, thus adjusting the light quantity and wavelength distribution of said whole-surface exposure, the developing conditions or the developing electric field.
摘要翻译： PCT No.PCT / JP85 / 00588 Sec。 371日期：1986年8月5日 102（e）日期1986年8月5日PCT提交1985年10月21日PCT公布。 出版物WO86 / 02745 日本公开了1986年5月9日。现在公开的是通过重复这种全面曝光和显影多色图像形成感光构件（4）来形成多色图像的方法和装置，其具有：垂直夹在光电导层 绝缘层（2）和导电层（3），所述绝缘层（2）和所述导电层（3）中的至少一个是透光的，并且由多种滤光器组成，这将产生电位 在所述感光构件（4）已被充电并进行图像曝光之后，在特定种类的一个所述滤光器的一部分中的图案，从而调节所述全表面曝光的光量和波长分布，显影条件或 发展电场。
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8.发明授权Developing method for electrostatic images using composite component developer under non-contacting conditions 失效在非接触条件下使用复合组分显影剂的静电图像显影方法
公开(公告)号：US4797335A
公开(公告)日：1989-01-10
申请号：US96818
申请日：1987-09-10
IPC分类号： G03G15/09
CPC分类号： G03G15/0907
摘要： A developing method wherein an oscillating electric field is formed in a development area between an image retainer; and a developer feeding carrier of a composite developer containing a chargeable component, and the oscillating waveform of the oscillating electric field is varied to provide an adjustment of the development performance. Preferably, the oscillating electric field is an alternating electric field. The oscillating waveform is modified by varying the amplitude, bias, selection time for a time-selected waveform transformation, or frequency thereof.
摘要翻译： 一种显影方法，其中在图像保持器之间的显影区域中形成振荡电场; 以及包含可充电组分的复合显影剂的显影剂供给载体，并且改变振荡电场的振荡波形以提供显影性能的调整。 优选地，振荡电场是交变电场。 通过改变时间选择的波形变换的幅度，偏置，选择时间或其频率来修改振荡波形。
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公开(公告)号：US4679929A
公开(公告)日：1987-07-14
申请号：US868020
申请日：1986-05-29
CPC分类号： G03G13/01 , G03G13/013
摘要： A method of reproducing multiplex images wherein an electrostatic image is formed on an image retainer by using a common electrostatic image forming device, the electrostatic image formed on the image retainer is developed, the steps of the above are repeated to superpose a plurality of toner images on the image retainer, and the toner images is transferred on a recording paper by one step. The developings other than the first time developing are carried out in such a manner that the surface of a developer layer on a developer feeding carrier does not contact with the surface of the toner image on the image retainer.
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公开(公告)号：US07068859B2
公开(公告)日：2006-06-27
申请号：US09984597
申请日：2001-10-30
申请人： Seiichiro Hiratsuka , Etsuko Satoh
发明人： Seiichiro Hiratsuka , Etsuko Satoh
IPC分类号： G06K9/32
CPC分类号： G06T3/4007
摘要： A three-dimensional space formed by three-channel input signals is divided into a plurality of polyhedrons having vertices at points corresponding to a conversion table. A particular polyhedron is determined which is associated with the points corresponding to the three-channel input signals. The nonlinear interpolation is carried out using the conversion data corresponding to the vertices of the intended polyhedron thus determined and the conversion data corresponding to the vertices of the polyhedrons in surface contact with the intended polyhedron.
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