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1.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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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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3.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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4.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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5.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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6.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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公开(公告)号：US5799139A
公开(公告)日：1998-08-25
申请号：US831598
申请日：1997-04-10
申请人： Haruo Yamamoto , Katsumi Amakawa , Shuji Hayashi , Masaya Fujimoto , Koichi Matsuo , Ryuichi Okumura , Shinji Hayashi
发明人： Haruo Yamamoto , Katsumi Amakawa , Shuji Hayashi , Masaya Fujimoto , Koichi Matsuo , Ryuichi Okumura , Shinji Hayashi
CPC分类号： H04N1/00413 , H04N1/00236 , H04N1/00238 , H04N1/00241 , H04N1/00384 , H04N1/00411 , H04N1/00466 , H04N1/00474 , H04N1/00477 , H04N1/00482 , H04N2201/0015 , H04N2201/0074
摘要： A copying apparatus includes a copying machine unit, an operation portion having a central processing unit and an image processing unit having a central processing unit. A workstation is connected to the operation portion through the image processing unit. Data communication is performed between the workstation and the image processing unit and between the image processing unit and the operation portion. The image formation processing performed by the copying machine unit is controlled based on a command generated by operating the workstation.
摘要翻译： 复印装置包括复印机单元，具有中央处理单元的操作部分和具有中央处理单元的图像处理单元。 工作站通过图像处理单元连接到操作部分。 在工作站和图像处理单元之间以及图像处理单元和操作部分之间执行数据通信。 基于通过操作工作站产生的命令来控制由复印机单元执行的图像形成处理。
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公开(公告)号：US5771107A
公开(公告)日：1998-06-23
申请号：US580930
申请日：1995-12-29
CPC分类号： H04N1/58
摘要： An image processor is provided which emphasis-processes an image to be copied with attention to the detection of black edges so that clear color copy outputs are obtained. R, G and B data read out from an original by a scanner are converted into C, M and Y complementary color data by a complementary color reversing circuit. The complementary color data are transmitted to a black edge processing circuit and to a black edge detecting circuit. The black edge detecting circuit detects the inside or the outside of a black edge, and in accordance therewith, the black edge processing circuit, for example, changes the coefficient of a spatial filter. The output of the black edge processing circuit is outputted to a printer through a black generating circuit, a tone correcting circuit and a half tone processing circuit.
摘要翻译： 提供了一种图像处理器，其强调处理要复制的图像，同时注意黑色边缘的检测，从而获得清晰的彩色复印输出。 通过扫描器从原稿读出的R，G和B数据由互补色反转电路转换为C，M和Y互补色数据。 互补颜色数据被发送到黑色边缘处理电路和黑色边缘检测电路。 黑色边缘检测电路检测黑色边缘的内部或外部，并且根据该黑色边缘处理电路例如改变空间滤波器的系数。 黑边处理电路的输出通过黑色发生电路，色调校正电路和半色调处理电路输出到打印机。
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公开(公告)号：US5642201A
公开(公告)日：1997-06-24
申请号：US348204
申请日：1994-11-28
申请人： Shinji Hayashi , Masaya Fujimoto , Katsumi Amakawa
发明人： Shinji Hayashi , Masaya Fujimoto , Katsumi Amakawa
CPC分类号： H04N1/028
摘要： An electrographic copying machine in which an image projected on an original glass stand by a film projector is read out by a scanner and copied is provided with a color scanner including a CCD for reading out a projected image, a smoothing processing unit for averaging the tone data of pixels outputted from the color scanner every four pixels, a difference value totaling unit for totaling the difference values between the averaged tone data, and a control unit for performing focusing of the film projector so that the total of the difference values is maximum. The focusing of the projected image is automatically performed.
摘要翻译： 一种电子照相复印机，其中通过扫描仪读出由投影仪投影在原稿玻璃架上的图像，并且复印设置有包括用于读出投影图像的CCD的彩色扫描仪，用于对色调进行平均的平滑处理单元 每四个像素从彩色扫描器输出的像素的数据，用于将平均色调数据之间的差值相加的差值合计单元和用于进行胶卷投影仪的聚焦的控制单元，使得差值的总和最大。 自动执行投影图像的对焦。
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10.发明授权Color correction device to correct errors in input and output portions of an image developing device and method thereof 失效用于校正图像显影装置的输入和输出部分中的错误的颜色校正装置及其方法
公开(公告)号：US5790261A
公开(公告)日：1998-08-04
申请号：US650438
申请日：1996-05-20
申请人： Shinji Hayashi , Masayuki Mizuno , Haruo Yamamoto
发明人： Shinji Hayashi , Masayuki Mizuno , Haruo Yamamoto
CPC分类号： H04N1/6075 , H04N1/6027
摘要： A color correcting device and a color correcting method in an image forming apparatus such as a color copying machine that rely on, a correction factor in a masking equation which is previously found for each predetermined hue range. It is judged which of a plurality of predetermined hue ranges corresponds to a hue corresponding to input data composed of color data in a plurality of colors. The input data is subjected to color correction using a masking equation using a correction factor corresponding to the judged hue range.
摘要翻译： 在诸如彩色复印机的图像形成装置中，依赖于对于每个预定色相范围预先找到的掩蔽方程中的校正因子的颜色校正装置和颜色校正方法。 判断多个预定色调范围中的哪一个对应于与由多种颜色的颜色数据组成的输入数据相对应的色调。 使用与所判定的色调范围对应的校正因子的掩蔽方程对输入数据进行颜色校正。
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