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公开(公告)号：US4812881A
公开(公告)日：1989-03-14
申请号：US6843
申请日：1987-01-27
CPC分类号： G03G15/5025
摘要： An automatic image-density control system for photo-copying the page-to-page content of an open book, in which optimum values (of exposure or development bias) needed for precisely copying the page-to-page content are initially established by performing either continuous pre-scanning of both pages of an open book or pre-scanning of the second page after completing photo-copying of the first page, and then, based on the optimum values thus established in conjunction with the first page content, photo-copying operation for the first page content is executed, and then, based on the optimum values established for the second-page content, photo-copying operation is sequentially executed for the second-page content.
摘要翻译： 一种自动图像密度控制系统，用于对打开的书籍的页面到页面内容进行照片复制，其中通过执行以下操作来初始建立用于精确复制页面到页面内容所需的最佳值（曝光或开发偏差） 在完成第一页的复印之后，连续预扫描打开的书的两页或第二页的预扫描，然后基于与第一页内容一起建立的最佳值， 执行第一页内容的复制操作，然后基于为第二页内容确定的最佳值，顺序地执行第二页内容的照片复印操作。
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公开(公告)号：US5070412A
公开(公告)日：1991-12-03
申请号：US441255
申请日：1989-11-27
CPC分类号： H04N1/3935
摘要： An enlargement/reduction signal generating apparatus comprises means for generating basic clock pulses, means for generating frequency-divided clock pulses of different kinds, having the different frequencies by dividing the frequency of said basic clock pulses, means for generating selection signals to combine said clock pulses generated by said basic clock pulse generating means and said frequency-divided clock pulse generating means, whereby the ratio of said reading clock pulses to said writing clock pulses corresponds to a predetermined enlargement/reduction ratio, and means for making enlargement/reduction clock pulses by combining said basic clock pulses and said frequency-divided clock pulses in correspondence with said selection signals from said selection signal generating means and for outputting said enlargement/reduction clock pulses as said reading clock pulses or said writing clock pulses. The enlargement/reduction signal generating apparatus is an apparatus for generating reading clock pulses and writing clock pulses to enlarge or reduce the image of digital data stored in a storing means. The apparatus may be disposed in an image processing unit for processing image information. The image processing unit may be used as a unit which receives image information from an optical unit, enlarges or reduces the image information, and outputs the enlarged/reduced image information to an image forming part, in a copying machine having a scanner and a printer. The copying machine may be a digital copying machine having a laser unit.
摘要翻译： 放大/缩小信号发生装置包括用于产生基本时钟脉冲的装置，用于产生不同种类的分频时钟脉冲的装置，具有通过划分所述基本时钟脉冲的频率而具有不同频率的装置，用于产生选择信号的装置，以组合所述时钟 由所述基本时钟脉冲发生装置和所述分频时钟脉冲发生装置产生的脉冲，由此所述读取时钟脉冲与所述写入时钟脉冲的比率对应于预定的放大/缩小比率，以及用于进行放大/缩小时钟脉冲的装置 通过将所述基本时钟脉冲和所述分频时钟脉冲对应于来自所述选择信号发生装置的所述选择信号组合，并输出所述放大/缩小时钟脉冲作为所述读取时钟脉冲或所述写入时钟脉冲。 放大/缩小信号发生装置是用于产生读取时钟脉冲和写入时钟脉冲以放大或减少存储在存储装置中的数字数据的图像的装置。 该装置可以设置在用于处理图像信息的图像处理单元中。 图像处理单元可以用作从光学单元接收图像信息的单元，放大或缩小图像信息，并且在具有扫描仪和打印机的复印机中将放大/缩小图像信息输出到图像形成部分 。 复印机可以是具有激光单元的数字复印机。
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公开(公告)号：US5016194A
公开(公告)日：1991-05-14
申请号：US431931
申请日：1989-11-06
CPC分类号： H04N1/3871 , H04N1/393
摘要： In an image forming apparatus including a digital image processing device, an overlay memory stores predetermined image data. The image data stored in the overlay memory is read at a predetermined timing in a predetermined cycle and composite data is made from the image data and image data outputted from a line memory. Since the image data stored in the overlay memory is read at the predetermined timing in the predetermined cycle, various kinds of overlaid image which may include a space-magnified image can be made by arbitrarily selecting the timing and cycle for reading.
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4.发明授权Apparatus for and method of detecting dotted image area using two types of judging areas 失效使用两种判断区域检测点图像区域的装置和方法
公开(公告)号：US5771313A
公开(公告)日：1998-06-23
申请号：US556840
申请日：1995-11-02
CPC分类号： H04N1/40062
摘要： An apparatus for and a method of detecting a dotted image area in an image. It is judged on the basis of image data corresponding to pixels in a first judging area which includes a predetermined number of pixels including a target pixel whether or not the target pixel is a peculiar point pixel (a peak pixel or a dip pixel). Further, it is judged on the basis of image data corresponding to pixels in a second judging area which is larger than the first judging area whether or not the target pixel is a peculiar point pixel. The dotted image area in the image is detected on the basis of the results of judgment related to the first judging area and the second judging area.
摘要翻译： 一种检测图像中虚线图像区域的装置和方法。 基于与包括目标像素的预定数量的像素在内的第一判断区域中的像素相对应的图像数据，判断目标像素是否是特殊点像素（峰值像素或dip像素）。 此外，基于与第一判断区域大于第二判断区域的像素对应的图像数据来判断目标像素是否是特殊点像素。 基于与第一判断区域和第二判断区域相关的判定结果来检测图像中的虚线图像区域。
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5.发明授权Method of and apparatus for detecting pixels constituting dotted image area utilizing distance between change points of pixel values 失效用于利用像素值的变化点之间的距离来检测构成点图像区域的像素的方法和装置
公开(公告)号：US5754312A
公开(公告)日：1998-05-19
申请号：US558187
申请日：1995-11-15
IPC分类号： H04N1/40
CPC分类号： H04N1/40062
摘要： Disclosed is an apparatus for detecting pixels in a dotted image area (dotted area pixels). Image data corresponding to each of the pixels is coded into one of a predetermined number of discrete values. The distance between change points at which the value of the pixel after the coding is changed from a first value to a second value is detected. Further, it is examined whether or not periodicity is recognized in the distance between the change points in the vicinity of a target pixel. If periodicity is recognized in the distance between the change points, it is judged that the target pixel may constitute a dotted image area.
摘要翻译： 公开了一种用于检测虚线图像区域（虚线区域像素）中的像素的装置。 对应于每个像素的图像数据被编码为预定数量的离散值之一。 检测编码后的像素的值从第一值变为第二值的变化点之间的距离。 此外，检查在目标像素附近的变化点之间的距离是否识别周期性。 如果在变化点之间的距离中识别周期性，则判断为目标像素可以构成虚线图像区域。
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公开(公告)号：US5712924A
公开(公告)日：1998-01-27
申请号：US551293
申请日：1995-10-31
CPC分类号： H04N1/46
摘要： A color image is by an optical scanner for conversion into three primary color data corresponding to the respective densities of the three primary colors. An edge detector detects a pixel of an edge based on the three primary color data. A pixel color judging device judges a color of a target pixel based on the three primary color data of the target pixel and its adjacent pixels. Based on edge detection results of the edge detector and pixel color judgment results of the pixel color judging device, detected is a pixel of a black edge. Judgement conditions for the pixel color judgement are established based upon characteristics that depend upon the order of arrangement of color filters in a scanner.
摘要翻译： 彩色图像是通过光学扫描仪转换成对应于三原色相应密度的三原色数据。 边缘检测器基于三原色数据检测边缘的像素。 像素颜色判断装置根据目标像素及其相邻像素的三原色数据判断目标像素的颜色。 基于边缘检测器的边缘检测结果和像素颜色判断装置的像素颜色判断结果，检测到黑色边缘的像素。 基于取决于扫描仪中的滤色器的布置顺序的特性来建立像素颜色判断的判断条件。
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公开(公告)号：US20070097432A1
公开(公告)日：2007-05-03
申请号：US11258879
申请日：2005-10-27
IPC分类号： G06K15/00
CPC分类号： G06K15/00 , G03G15/50 , G03G21/04 , H04N1/32358 , H04N1/4446 , H04N2201/0091 , H04N2201/3288 , H04N2201/3295
摘要： This image forming device 1 comprises an image processing unit 9, an HDD 23 and an image forming unit. The image processing unit 9 is capable of instructing the output of the image data sent from the PC 43. The HDD 23 is connected to the image processing unit 9 and is capable of storing the image data to be delivered. The image forming unit is capable of receiving the instruction from the image processing unit 9 and delivering onto paper or the like the image data stored in the HDD 23. Then, when the ID information contained in the image data is detected by the image processing unit 9, writing of image data to the HDD 23 is prohibited.
摘要翻译： 该图像形成装置1包括图像处理单元9，HDD 23和图像形成单元。 图像处理单元9能够指示从PC 43发送的图像数据的输出。 HDD23连接到图像处理单元9，并且能够存储要传送的图像数据。 图像形成单元能够接收来自图像处理单元9的指令，并且将存储在HDD 23中的图像数据传送到纸张等上。 然后，当由图像处理单元9检测到包含在图像数据中的ID信息时，禁止将图像数据写入HDD 23。
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8.发明授权Dotted image area detecting apparatus and dotted image area detecting method 失效点状图像区域检测装置和点状图像区域检测方法
公开(公告)号：US6049635A
公开(公告)日：2000-04-11
申请号：US32996
申请日：1998-03-02
CPC分类号： H04N1/40062
摘要： An apparatus for and a method of reliably detecting a very small dotted image area. A detecting area including a predetermined number of pixels including a target pixel is set. It is judged whether or not the detecting area belongs to a dotted image area on the basis of the number of edge pixels in the detecting area. Consequently, it is possible to detect edges peculiar to the dotted image area on the basis of a leading edge portion or a trailing edge portion of the density, to detect the very small dotted image area on the basis of the number of edge pixels.
摘要翻译： 一种可靠地检测非常小的点状图像区域的装置和方法。 设置包括目标像素的预定数量的像素的检测区域。 基于检测区域中的边缘像素的数量，判断检测区域是否属于虚线图像区域。 因此，可以基于密度的前缘部分或后缘部分来检测虚线图像区域特有的边缘，以基于边缘像素的数量来检测非常小的点状图像区域。
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9.发明授权Dotted image area detecting apparatus and dotted image area detecting method 失效点状图像区域检测装置和点状图像区域检测方法
公开(公告)号：US5754708A
公开(公告)日：1998-05-19
申请号：US556843
申请日：1995-11-02
IPC分类号： H04N1/40
CPC分类号： H04N1/40062
摘要： An apparatus for and a method of reliably detecting a very small dotted image area. A detecting area including a predetermined number of pixels including a target pixel is set. It is judged whether or not the detecting area belongs to a dotted image area on the basis of the number of edge pixels in the detecting area. Consequently, it is possible to detect edges peculiar to the dotted image area on the basis of a leading edge portion or a trailing edge portion of the density, to detect the very small dotted image area on the basis of the number of edge pixels.
摘要翻译： 一种可靠地检测非常小的点状图像区域的装置和方法。 设置包括目标像素的预定数量的像素的检测区域。 基于检测区域中的边缘像素的数量，判断检测区域是否属于虚线图像区域。 因此，可以基于密度的前缘部分或后缘部分来检测点状图像区域特有的边缘，以基于边缘像素的数量来检测非常小的点状图像区域。 ！
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10.发明授权Image processor for smoothing and differentiating periodic areas and character areas using coefficients 失效图像处理器，用于使用系数平滑和微分周期区域和字符区域
公开(公告)号：US5684600A
公开(公告)日：1997-11-04
申请号：US575083
申请日：1995-12-19
CPC分类号： H04N1/4092 , H04N1/40062 , H04N1/58
摘要： An image processor performs emphasis processings suitable for materials to be copied to produce clear copy outputs. The image processor has a digitizing circuit which outputs a digital signal produced by digitizing an image. The processor further has a first detecting circuit which detects an area of the digital signal including a periodic component, a second detecting circuit which detects a character area of the digital signal, and a smoothing circuit which smoothes the digital signal to output a smoothed signal. Either the digital signal or the smoothed signal is selected and outputted by a changeover circuit according to an output of the first detecting circuit. The output of the changeover circuit is differentiated into a plurality of differentiated signals by a differentiating circuit by use of a plurality of different coefficients. One of the differentiated signals is selected and outputted according to the outputs of the first and second detecting circuits.
摘要翻译： 图像处理器执行适合于要复制的材料的强调处理以产生清晰的拷贝输出。 图像处理器具有数字化电路，其输出通过数字化图像而产生的数字信号。 处理器还具有检测包括周期性分量的数字信号的区域的第一检测电路，检测数字信号的字符区域的第二检测电路以及平滑数字信号以输出平滑信号的平滑电路。 根据第一检测电路的输出，通过转换电路选择和输出数字信号或平滑信号。 通过使用多个不同的系数，通过微分电路将转换电路的输出微分成多个微分信号。 根据第一和第二检测电路的输出来选择和输出微分信号之一。
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