-
41.发明授权Color image processing apparatus with digital color signal compression means 失效具有数字彩色信号压缩手段的彩色图像处理装置
公开(公告)号：US5119184A
公开(公告)日：1992-06-02
申请号：US498905
申请日：1990-03-26
CPC分类号： H04N1/6025 , H04N1/56
摘要： The invention provides a color image-processing apparatus in which there is provided a color reproduction table for producing plural color image signals for each of a plurality of processing channels in response to digital pixel signals splitted into said plurality of processing channels. There is further provided a signal processor for modifying a bit configuration of the digital pixel signals so that the bit configuration is differently modified corresponding to each of said plurality of processing channels. The produced plural color image signals are composed into one channel to form a new color image.
-
公开(公告)号：US4841377A
公开(公告)日：1989-06-20
申请号：US62556
申请日：1987-06-11
IPC分类号： H04N1/405
CPC分类号： H04N1/4051
摘要： A continuous image estimation method of a binary image wherein only one scanning aperture satisfying a predetermined condition for each picture element of a continuous image to be estimated from a plurality of scanning apertures for each kind in a dither image formed of a dither matrix, and the continuous image is estimated on the basis of the number of white or black picture elements in the scanning aperture selected. The predetermined condition is that a gradation expression is conducted in a lower spatial frequency range by using larger scanning apertures and in a higher spatial frequency range by using smaller scanning apertures, and that for the coincidence between patterns of a dither image in the scanning aperture and a binary image, which is made binary with the dither matrix from a continuous image formed on the bases of the number of the white or black picture elements in the scanning aperture, the patterns being obtained by comparing the dither image and the binary image for each aperture.
摘要翻译： 一种二值图像的连续图像估计方法，其中在由抖动矩阵形成的抖动图像中，从用于各种的多个扫描孔径估计连续图像的每个图像的每个图像的仅满足预定条件的一个扫描孔径， 基于选择的扫描光圈中的白色或黑色像素的数量来估计连续图像。 预定条件是通过使用更大的扫描孔径，并且在较高的空间频率范围内，通过使用较小的扫描孔径，在较低的空间频率范围内进行灰度表达，并且对于扫描孔径中的抖动图像的图案和 二进制图像，其由扫描孔径中的白色或黑色像素的数量形成的连续图像中的抖动矩阵制成二进制图案，通过将抖动图像和二值图像进行比较而获得的图案 光圈。
-
公开(公告)号：US4783838A
公开(公告)日：1988-11-08
申请号：US813050
申请日：1985-12-24
申请人： Masahiko Matsunawa
发明人： Masahiko Matsunawa
CPC分类号： H04N1/3935 , H04N1/40075
摘要： An image processing method wherein a binary image is divided into blocks, at least one of the number of black picture elements and the number of white picture elements for each of the divided block of binary image are counted, and a tonal image is restored on the basis of the counted number from the binary image. An image processing apparatus for obtaining an expanded image or a contracted image by effecting a predetermined image processing for an image matrix consisting of binary data, having a device for instructing the gradation processing at the time of expanding or contracting the image, a device for instructing the kind of image pattern that is to be expanded or contracted, and a device for instructing the image gradation, wherein a predetermined image processing is effected depending upon these instructions.
摘要翻译： 一种图像处理方法，其中二进制图像被划分为多个块，对所分割的二进制图像块中的每一个的黑色图像元素和白色图像元素的数量中的至少一个进行计数，并且在 来自二进制图像的计数的基数。 一种用于通过对由二进制数据组成的图像矩阵进行预定图像处理来获得扩展图像或收缩图像的图像处理装置，具有用于指示图像扩展或缩小时的灰度处理的装置，用于指示的装置 要扩展或收缩的图像图案的种类以及用于指示图像灰度的装置，其中根据这些指令进行预定的图像处理。
-
公开(公告)号：US4768082A
公开(公告)日：1988-08-30
申请号：US12832
申请日：1987-02-10
CPC分类号： H04N1/646 , H04N1/4105
摘要： A color image data compressing method wherein after the primary color signals of a digital color image have been converted into luminance signals and component color signals, these component color signals are compressed to generate compressed color signals, and the compressed color signals and the luminance signals are binarily processed, respectively, to form information-compressed binary images. The binary images are dither images by the dither method.
摘要翻译： 一种彩色图像数据压缩方法，其中在数字彩色图像的原色信号已经被转换成亮度信号和分量颜色信号之后，这些分量颜色信号被压缩以产生压缩的彩色信号，压缩的彩色信号和亮度信号是 分别进行二进制处理，形成信息压缩的二进制图像。 二进制图像是抖动方法的抖动图像。
-
公开(公告)号：US4741046A
公开(公告)日：1988-04-26
申请号：US757653
申请日：1985-07-22
CPC分类号： H04N1/40062
摘要： A method of discriminating pictures, wherein a picture is binary-coded. The variation in the number of foreground pixels constituting foreground pixel regions within a discrimination unit area is determined. Alternatively the variation in the distance between said foreground pixel regions is determined. It is then determined by a known relationship whether the discrimination unit area is of a dot gradation picture or not. If the picture is not a dot gradation picture, the rate of background is measured to determine whether the above discrimination unit area is of a line picture or of a continuous tone picture.
摘要翻译： 一种辨别图像的方法，其中图像是二进制编码的。 确定构成识别单位区域内的前景像素区域的前景像素数量的变化。 或者，确定所述前景像素区域之间的距离的变化。 然后，通过已知的关系确定判别单位区域是否为点分级图像。 如果图像不是点灰度图像，则测量背景的速率以确定上述辨别单位区域是线路图像还是连续色调图像。
-
公开(公告)号：US4495508A
公开(公告)日：1985-01-22
申请号：US314209
申请日：1981-10-23
CPC分类号： G03G15/323 , H04N1/29
摘要： An electrostatic reproducing apparatus in which a passage of ions generated from an ion generator is modulated by an ion modulating electrode which modulates corresponding to image signals that are to be reproduced. An ion flow condensing electrode comprising an insulating plate and a conductive plate coated on one surface of said insulating plate is disposed between said ion generator and said ion modulating electrode. Said electrostatic reproducing apparatus comprises an electrode for deflecting the flow path of ion flow, said electrode for deflecting being disposed on the side opposite to said ion generator of said ion modulating electrode, and being applied with a predetermined potential with respect to said ion modulating electrode.
摘要翻译： 一种静电重放装置，其中由离子发生器产生的离子的通过被离子调制电极调制，离子调制电极对应于将被再现的图像信号进行调制。 包括绝缘板和涂覆在所述绝缘板的一个表面上的导电板的离子聚集电极设置在所述离子发生器和所述离子调节电极之间。 所述静电再现装置包括用于偏转离子流的流路的电极，所述用于偏转的电极设置在与所述离子调制电极的所述离子发生器相对的一侧，并且相对于所述离子调制电极施加预定电位 。
-
公开(公告)号：US4472724A
公开(公告)日：1984-09-18
申请号：US249388
申请日：1981-03-31
CPC分类号： G03G15/323
摘要： An electrostatic recording apparatus comprising an ion modulator, a driving circuit for transforming a first image signal into a second image signal and for applying said second image signal to the ion modulator, a member for forming electrostatic latent image, and a photon coupled isolator. A voltage of the second image signal is higher than a voltage of the first image signal. The first image signal is supplied to the driving circuit through the photon coupled isolator. The ion modulator is a multilayered ion modulator comprising a layer of insulating material, a continuous layer of conductive material and a segmented layer of conductive material on the other side of said insulating layer. Each segment of the segmented conductive layer is insulatively isolated from each other segment. The multilayered ion modulator has at least one of row of apertures formed therethrough. A segment of the segmented conduction layer is formed around each aperture.
摘要翻译： 一种静电记录装置，包括离子调制器，用于将第一图像信号转换为第二图像信号并将所述第二图像信号施加到离子调制器的驱动电路，用于形成静电潜像的部件和光子耦合隔离器。 第二图像信号的电压高于第一图像信号的电压。 第一图像信号通过光子耦合隔离器提供给驱动电路。 离子调制器是一种多层离子调制器，其包括绝缘材料层，导电材料的连续层和在所述绝缘层的另一侧上的分段的导电材料层。 分段导电层的每个片段彼此隔离隔离。 多层离子调制器具有穿过其中形成的一列孔。 在每个孔周围形成分段导电层的一段。
-
公开(公告)号：US4467333A
公开(公告)日：1984-08-21
申请号：US247020
申请日：1981-03-24
CPC分类号： H04N1/1903 , G03G15/323 , H04N1/10 , H04N1/193 , H04N1/1934 , H04N1/29 , H04N1/40025 , H04N1/1008 , H04N1/1017
摘要： A copying machine comprising an image signal generating unit including a solid image pickup element for converting an optical image into an electric signal; an ion generating source; and an electrostatic image forming unit including an ion control electrode. The ion control electrode has a control electrode and a common electrode arranged to face each other through an insulating layer and formed with fine openings arranged in a row or in plural adjacent rows. At least one of the electrodes being divided into such a plurality of blocks as has its one or plural openings electrically insulated at a close spacing across the aforementioned arranged openings and as are wired to receive electric signals from the aforementioned image signal generating unit, the common electrode being operative to control the flow of ions, which are directed toward a charge holder, if necessary, together with the control electrode in response to a bias voltage applied. A reference voltage corresponding to the color to be recorded is preset so that the voltage corresponding to the difference between the reference voltage and the signal voltage is applied to the control electrode of the ion control electrode.
摘要翻译： 一种复印机，包括：图像信号产生单元，包括用于将光学图像转换成电信号的固体图像拾取元件; 离子发生源; 以及包括离子控制电极的静电图像形成单元。 离子控制电极具有控制电极和公共电极，其通过绝缘层彼此相对设置并且形成有排成一行或多个相邻行的细小开口。 电极中的至少一个被分成多个块，其一个或多个开口在上述布置的开口处以紧密的间隔电绝缘，并且被布线以从上述图像信号产生单元接收电信号 电极用于响应于所施加的偏置电压而控制离子的流动，如果需要，它们与控制电极一起指向电荷保持器。 对应于要记录的颜色的参考电压被预先设定，使得对应于基准电压和信号电压之差的电压被施加到离子控制电极的控制电极。
-
-
-
-
-
-
-
搜索结果
48 条记录 (耗时 0.021 秒)
