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公开(公告)号：US07995249B2
公开(公告)日：2011-08-09
申请号：US12635409
申请日：2009-12-10
IPC分类号： H04N1/04
CPC分类号： H04N1/40062 , H04N1/40068
摘要： An image forming apparatus according to an embodiment of the invention reads an original by mechanically moving an axial light source in a subscanning direction perpendicular to the axis. The image forming apparatus includes: a sensor whose resolution in a main scanning direction parallel to the axis of the axial light source is higher than a designated resolution; a controller that controls the driving speed of the axial light source so that the resolution in the subscanning direction is higher than the designated resolution; an original-image-data generating unit that generates original image data with a resolution higher than the designated resolution in response to the output from the sensor; and an image reducing unit that generates reduced pixels fewer than a specified number of pixels in the original image data to generate a reduced image with a resolution equal to the designated resolution.
摘要翻译： 根据本发明的实施例的图像形成装置通过在垂直于轴的副扫描方向上机械地移动轴向光源来读取原稿。 图像形成装置包括：传感器，其在与主轴扫描方向平行的主扫描方向的分辨率高于指定分辨率; 控制器，其控制轴向光源的驱动速度，使得副扫描方向上的分辨率高于指定分辨率; 原始图像数据生成单元，响应于来自传感器的输出而生成分辨率高于指定分辨率的原始图像数据; 以及图像缩小单元，其生成少于原始图像数据中的指定数量的像素的缩小像素，以生成具有等于指定分辨率的分辨率的缩小图像。
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公开(公告)号：US20090323095A1
公开(公告)日：2009-12-31
申请号：US12164712
申请日：2008-06-30
申请人： Koji TANIMOTO , Kunihiko Miura , Hidekazu Sekizawa , Jun Sakakibara , Koji Kawai , Hirokazu Shoda , Naoyuki Misaka
发明人： Koji TANIMOTO , Kunihiko Miura , Hidekazu Sekizawa , Jun Sakakibara , Koji Kawai , Hirokazu Shoda , Naoyuki Misaka
IPC分类号： G06F3/12
CPC分类号： H04N1/3871 , H04N1/486 , H04N2201/0094
摘要： A method and apparatus of forming an image includes reading an original with a first resolution. An original is read with a second resolution which is different from said first resolution. The image information read with the first resolution and the second resolution is converted into image information of a third resolution for image forming. An image is formed with the third resolution based on the image information converted by the conversion.
摘要翻译： 形成图像的方法和设备包括以第一分辨率读取原稿。 以与所述第一分辨率不同的第二分辨率读取原稿。 用第一分辨率和第二分辨率读取的图像信息被转换成用于图像形成的第三分辨率的图像信息。 基于通过转换转换的图像信息，以第三分辨率形成图像。
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3.发明授权Error diffusion method in a multi-level image recording apparatus utilizing adjacent-pixel characteristics 失效利用相邻像素特性的多级图像记录装置中的误差扩散方法
公开(公告)号：US5708514A
公开(公告)日：1998-01-13
申请号：US521323
申请日：1995-08-30
CPC分类号： H04N1/4056
摘要： An image recording apparatus according to the present invention is characterized by comprising first signal conversion section for converting a pixel density value of an current pixel of an input image signal into a first recording control signal for defining a recording amount, second signal conversion section for referring to an adjacent-pixel recording control signal for defining a recording amount of at least one adjacent pixel connected to the current pixel to convert the first recording control signal into a second recording control signal, being closest to the first recording control signal, for defining a recording amount at which pixel formation for the current pixel is stabilized, recording section for recording an image based on the second recording control signal, and error diffusion section for diffusing an error between the pixel density value and a recording density value of the second recording control signal to a pixel density value of each of non-processed pixels located around the current pixel.
摘要翻译： 根据本发明的图像记录装置的特征在于包括：第一信号转换部分，用于将输入图像信号的当前像素的像素密度值转换为用于定义记录量的第一记录控制信号;第二信号转换部分，用于参考 涉及用于定义连接到当前像素的至少一个相邻像素的记录量的相邻像素记录控制信号，以将第一记录控制信号转换为最接近第一记录控制信号的第二记录控制信号，用于定义 用于当前像素的像素形成的记录量稳定，用于基于第二记录控制信号记录图像的记录部分和用于扩散像素浓度值和第二记录控制的记录浓度值之间的误差的误差扩散部分 信号到每个非处理像素的像素密度值 围绕当前像素。
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4.发明授权Image recording apparatus for representing a halftone by use of a plurality of recorded dots 失效用于通过使用多个记录点表示半色调的图像记录装置
公开(公告)号：US5497180A
公开(公告)日：1996-03-05
申请号：US71000
申请日：1993-06-04
IPC分类号： B41J2/52 , B41J2/525 , H04N1/40 , H04N1/405 , H04N1/46 , H04N1/52 , H04N1/60 , H04N1/64 , H04N1/21
CPC分类号： H04N1/4052 , H04N1/52 , H04N1/644
摘要： An image recording apparatus comprises an unequal interval quatization circuit for quantizing at an unequal interval an input multilevel image signal to prevent at least one signal having a tone level at which a recording density is unstable from being outputted, a circuit for calculating a difference between an unequal-interval-quantized signal and the input image signal, a buffer memory for temporarily storing the difference, a multiplexer for multiplying a recorded signal with a weight coefficient, an adder for adding a resultant signal from the multiplier to the input image signal, and a printer for recording an image, using the quantized signal as a record signal.
摘要翻译： 一种图像记录装置，包括：不等间隔积分电路，用于以不等间隔量化输入多值图像信号，以防止至少一个具有记录密度不稳定的音调电平的信号被输出;电路，用于计算 不等间隔量化信号和输入图像信号，用于临时存储差的缓冲存储器，用于将记录信号与权重系数相乘的多路复用器，用于将来自乘法器的合成信号与输入图像信号相加的加法器，以及 用于记录图像的打印机，使用量化信号作为记录信号。
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公开(公告)号：US5200840A
公开(公告)日：1993-04-06
申请号：US549435
申请日：1990-07-06
申请人： Yuzo Koike , Hidekazu Sekizawa , Naofumi Yamamoto
发明人： Yuzo Koike , Hidekazu Sekizawa , Naofumi Yamamoto
IPC分类号： G06T3/40
CPC分类号： G06T3/4007
摘要： An image processing apparatus comprises an image-area discriminating circuit for discriminating the attribute of an image, such as whether it is a character/line image or a dot image or whether or not it is an isolated point noise, and outputting a discrimination result, an enlargement/reduction processing circuit for performing enlargement/reduction processing on an image, and a filtering circuit for controlling the spatial frequency response of an image in accordance of a discrimination signal.
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公开(公告)号：US07652800B2
公开(公告)日：2010-01-26
申请号：US11260257
申请日：2005-10-28
IPC分类号： H04N1/04
CPC分类号： H04N1/40062 , H04N1/40068
摘要： An image forming apparatus according to an embodiment of the invention reads an original by mechanically moving an axial light source in a subscanning direction perpendicular to the axis. The image forming apparatus includes: a sensor whose resolution in a main scanning direction parallel to the axis of the axial light source is higher than a designated resolution; a controller that controls the driving speed of the axial light source so that the resolution in the subscanning direction is higher than the designated resolution; an original-image-data generating unit that generates original image data with a resolution higher than the designated resolution in response to the output from the sensor; and an image reducing unit that generates reduced pixels fewer than a specified number of pixels in the original image data to generate a reduced image with a resolution equal to the designated resolution.
摘要翻译： 根据本发明的实施例的图像形成装置通过在垂直于轴的副扫描方向上机械地移动轴向光源来读取原稿。 图像形成装置包括：传感器，其在与主轴扫描方向平行的主扫描方向的分辨率高于指定分辨率; 控制器，其控制轴向光源的驱动速度，使得副扫描方向上的分辨率高于指定分辨率; 原始图像数据生成单元，响应于来自传感器的输出而生成分辨率高于指定分辨率的原始图像数据; 以及图像缩小单元，其生成少于原始图像数据中的指定数量的像素的缩小像素，以生成具有等于指定分辨率的分辨率的缩小图像。
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7.发明授权System and method for coding and/or decoding image including bit-map of different levels 失效用于编码和/或解码图像的系统和方法，包括不同级别的位图
公开(公告)号：US6154569A
公开(公告)日：2000-11-28
申请号：US616722
申请日：1996-03-15
CPC分类号： G06T9/00
摘要： A coding and/or decoding system for an image including bit-sops of different levels, is provided in an image recoding system which recodes bit-map data including small-level bit-map data and multilevel bit-map data in an image memory and which read the bit-map data out of the image memory to recode an image. In this coding and/or decoding system, after small-level bit-map data and multilevel bit-map data are divided into blocks, each of which is composed of a plurality of picture elements, the divided small-level bit-map data and the divided multilevel bit-map data are inputted to small-level bit-map data coding section and multilevel bit-map data coding section, respectively. The small-level bit-map data are transformed into codes representative of the number of black or white and half-tone picture elements in the block, and the multilevel bit-map data are transformed into codes representative of the average value or the total in the block. These data are assigned to different codes of digital data written in the image memory, respectively, so as to provide an image recoding system which can effectively reduce the capacity of a page memory for storing an image information and which can recode an image including small-level and multilevel.
摘要翻译： 在图像记录系统中提供了包括不同级别的位的图像的图像的编码和/或解码系统，其将包括图像存储器中的小级位图数据和多级位图数据的位图数据重新编码， 其读取图像存储器中的位图数据以重新编码图像。 在该编码和/或解码系统中，在小电平位图数据和多电平位图映射数据被划分成块之后，每个块由多个像素组成，分割的小电平位图数据和 分割的多电平位图数据分别输入到小电平位图数据编码部分和多电平位图数据编码部分。 小电平位图数据被变换成代表块中的黑色或白色和半色调像素的数量的代码，并且多级位图数据被转换成代表平均值或总数的代码 块。 这些数据分别被分配给写入图像存储器中的不同的数字数据代码，以便提供一种图像记录系统，其可以有效地降低用于存储图像信息的页面存储器的容量，并且可以重新编码包括小图像的图像， 水平和多层次。
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8.发明授权Color image printing system capable of correcting density deviation on image and system for detecting color deviation on image 失效彩色图像打印系统能够校正图像和系统上的浓度偏差，用于检测图像上的色差
公开(公告)号：US6134022A
公开(公告)日：2000-10-17
申请号：US679216
申请日：1996-07-12
CPC分类号： H04N1/4015 , H04N1/506
摘要： An image recording system for deriving a recorded image from an image signal by producing a positional-deviation amount indicative signal representative of a positional deviation in a sub-scanning direction of a scanning line forming a recorded image. The system corrects the positional deviation of the scanning line on the basis of the positional-deviation amount indicative signal. The system also corrects a density deviation of a recorded image due to the correction of the positional deviation on the basis of a pixel pattern of the image signal. A method is also provided for detecting a relative positional deviation between images of different colors in a color image recording system.
摘要翻译： 一种图像记录系统，用于通过产生表示形成记录图像的扫描线的副扫描方向上的位置偏差的位置偏差量指示信号从图像信号中导出记录图像。 系统基于位置偏离量指示信号校正扫描线的位置偏差。 该系统还基于图像信号的像素图案校正位置偏差，校正记录图像的浓度偏差。 还提供了一种用于检测彩色图像记录系统中不同颜色的图像之间的相对位置偏差的方法。
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公开(公告)号：US5278641A
公开(公告)日：1994-01-11
申请号：US664726
申请日：1991-03-05
CPC分类号： H04N1/60
摘要： A color image processing system which reads or receives a color image and outputs corrected color image to a display or printer. The system estimates the brightness of the original image and executes correction on the basis of this estimation. The system uses histograms to determine correction.
摘要翻译： 一种彩色图像处理系统，其读取或接收彩色图像并将校正的彩色图像输出到显示器或打印机。 该系统估计原始图像的亮度，并且基于该估计执行校正。 系统使用直方图来确定校正。
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10.发明授权Image layout apparatus for performing pattern modification such as coloring of an original image 失效用于执行图案修改的图像布局装置，例如原始图像的着色
公开(公告)号：US5136401A
公开(公告)日：1992-08-04
申请号：US623534
申请日：1990-12-07
摘要： An image layout apparatus for recognizing a color frame selectively marked on an original image, and automatically laying out the original image includes a color frame discriminating circuit for discriminating an image signal corresponding to the color frame from an image signal corresponding to the original image, a to-be-laid-out image signal outputting circuit for extracting a specific image signal corresponding to a specific image defined by the color frame from the original image signal, and outputting the specific image signal as a to-be-laid-out image signal, and a layout processing circuit for performing predetermined layout processing such as coloring layout of the to-be-laid-out image signal in accordance with the color frame image signal.
摘要翻译： 用于识别选择性地标记在原始图像上的彩色框架并且自动布置原始图像的图像布置设备包括：颜色帧鉴别电路，用于从与原始图像相对应的图像信号中鉴别与彩色帧相对应的图像信号; 要被布局的图像信号输出电路，用于从原始图像信号中提取与由彩色帧定义的特定图像相对应的特定图像信号，并将该特定图像信号作为待布局的图像信号 以及布局处理电路，用于根据彩色帧图像信号执行诸如要布置的图像信号的着色布局之类的预定布局处理。
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