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公开(公告)号：US07110128B1
公开(公告)日：2006-09-19
申请号：US09678297
申请日：2000-10-03
申请人： Hiroshi Kaburagi , Seita Shono
发明人： Hiroshi Kaburagi , Seita Shono
IPC分类号： G06F15/00
摘要： Communication with an external image output device is established via a network interface, information concerning the characteristics of the image output devices is received and is held in a back-up RAM. A multilevel image containing gray-scale information enters from an input sensor pixel by pixel and is binarized to a binary image by a binarization circuit. At this time the connectivity of the binary image is controlled based upon the characteristic information held in the RAM and the binary image, the connectivity of which has been controlled, is transmitted to the external image output device via the network interface. As a result, the connectivity of the binary image is controlled to deal with a change in binary-image reproducibility caused by differences in engine characteristics of image output devices on a network and by changes in the environment and change with time, thereby making it possible to optimize connectivity, achieve stable reproduction and improve image quality.
摘要翻译： 通过网络接口建立与外部图像输出装置的通信，接收到关于图像输出装置的特性的信息并保存在备用RAM中。 包含灰度信息的多级图像逐个输入一个输入传感器，并通过二进制化电路二值化成二进制图像。 此时，基于保持在RAM中的特征信息和其连通性被控制的二值图像经由网络接口被发送到外部图像输出装置来控制二值图像的连通性。 因此，控制二进制图像的连通性，以应对由网络上的图像输出装置的发动机特性的不同引起的二进制图像再现性的变化以及环境的变化以及随时间的变化的可能性 优化连接性，实现稳定的再现和提高图像质量。
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公开(公告)号：US06836344B2
公开(公告)日：2004-12-28
申请号：US09217134
申请日：1998-12-21
申请人： Jun Koide , Toshihiko Otsubo , Seita Shono
发明人： Jun Koide , Toshihiko Otsubo , Seita Shono
IPC分类号： G06F1500
CPC分类号： H04N1/4015
摘要： An image recording apparatus includes at least one recording head, in which a plurality of solid-state recording elements are arranged, for performing image recording by causing each of the plurality of solid-state recording elements to record a pixel, a storage unit for storing correction data for correcting image data in accordance with a recording characteristic of each of the plurality of solid-state recording elements so as to correspond to the corresponding one of the plurality of solid-state recording elements. Each of the plurality of solid-state recording elements is driven in accordance with input image data and the correction data stored in the storage unit. The apparatus also includes a pattern-data generation unit for generating predetermined pattern data, and for causing each of a predetermined number of consecutive solid-state recording elements from among the plurality of solid-state recording elements to record a pixel based on the predetermined pattern data, a reading unit for reading a test pattern recorded by the recording head based on the pattern data generated by the pattern-data generation unit, an acquisition unit for acquiring the recording characteristic of each of the plurality of solid-state recording elements based on a ratio of a number of solid-state recording elements which have recorded pixels in accordance with the predetermined test pattern to a number of pixels of the test pattern read by the reading unit, and a changing unit for changing the correction data for each of the solid-state recording elements in accordance with the recording characteristic of the corresponding one of the solid-state recording elements acquired by the acquisition means. The image recording apparatus can exactly detect the recording characteristic of each of the plurality of solid-state recording elements, and prevent nonuniformly in density caused by individual difference in the recording characteristic during image recording.
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公开(公告)号：US5884011A
公开(公告)日：1999-03-16
申请号：US716635
申请日：1996-09-13
申请人： Seita Shono
发明人： Seita Shono
CPC分类号： H04N1/4052
摘要： Adders (103, 104) add errors to multi-level image data whose number of bits is reduced by quantization units (101, 102), respectively. Weighted averaging units (120, 121) obtain the weighted average values of binary data of peripheral pixels which have already been divided, respectively. Comparators (107, 108) binarize, on the basis of the weighted average values, the image data output from the adders (103, 104) to obtain binary data corresponding to two pixels obtained upon dividing one pixel of the multi-level data into two pixels. Subtracters (105, 106) obtain the differences between the image data output from the adders (103, 104) and the weighted average values, respectively. Error arithmetic units (109, 110) obtain, on the basis of the differences, errors to be added by the adders (103, 104), respectively. Therefore, when one pixel of multi-level data is divided into two pixels of binary data, a binary image having a high resolution and high gradation can be generated at a low cost.
摘要翻译： 加法器（103,104）分别向通过量化单元（101,102）减少比特数的多级图像数据增加错误。 加权平均单元（120,121）分别获得已被划分的周边像素的二进制数据的加权平均值。 比较器（107,108）根据加权平均值二值化从加法器（103,104）输出的图像数据，以获得对应于将多级数据的一个像素分成两个像素获得的两个像素的二进制数据 像素。 减法器（105,106）分别获得从加法器（103,104）输出的图像数据与加权平均值之间的差异。 错误算术单元（109,110）分别根据差异获得由加法器（103,104）添加的错误。 因此，当多电平数据的一个像素被划分成二进制数据的两个像素时，可以以低成本生成具有高分辨率和高灰度级的二值图像。
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公开(公告)号：US5815291A
公开(公告)日：1998-09-29
申请号：US556654
申请日：1995-11-13
申请人： Seita Shono , Akihiro Usami
发明人： Seita Shono , Akihiro Usami
摘要： An image reading apparatus measures, color by color, an average transmission-density signal based upon image information obtained from a color original through which light is transmitted, converts the measured average transmission-density signal of every color into a subject-lightness signal of every color, and effects a conversion into a reference color stimulus signal, which is indicated by the apex of a triangle substantially circumscribed by a spectrum locus of a predetermined chromaticity diagram, based upon the converted subject-lightness signal of every color.
摘要翻译： 图像读取装置根据从发送光的彩色原稿获得的图像信息，逐个颜色地测量平均透射密度信号，将测得的每种颜色的平均透射密度信号转换成每个颜色的被摄体亮度信号 并且基于每个颜色的转换的被摄体亮度信号，将转换成基准颜色激励信号，该参考颜色激励信号由基本上由预定色度图的光谱轨迹限定的三角形的顶点指示。
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公开(公告)号：US06424432B1
公开(公告)日：2002-07-23
申请号：US09217134
申请日：1998-12-21
申请人： Jun Koide , Toshihiko Otsubo , Seita Shono
发明人： Jun Koide , Toshihiko Otsubo , Seita Shono
IPC分类号： G06F1500
CPC分类号： H04N1/4015
摘要： An image recording apparatus includes at least one recording head, in which a plurality of solid-state recording elements are arranged, for performing image recording by causing each of the plurality of solid-state recording elements to record a pixel, a storage unit for storing correction data for correcting image data in accordance with a recording characteristic of each of the plurality of solid-state recording elements so as to correspond to the corresponding one of the plurality of solid-state recording elements. Each of the plurality of solid-state recording elements is driven in accordance with input image data and the correction data stored in the storage unit. The apparatus also includes a pattern-data generation unit for generating predetermined pattern data, and for causing each of a predetermined number of consecutive solid-state recording elements from among the plurality of solid-state recording elements to record a pixel based on the predetermined pattern data, a reading unit for reading a test pattern recorded by the recording head based on the pattern data generated by the pattern-data generation unit, an acquisition unit for acquiring the recording characteristic of each of the plurality of solid-state recording elements based on a ratio of a number of solid-state recording elements which have recorded pixels in accordance with the predetermined test pattern to a number of pixels of the test pattern read by the reading unit, and a changing unit for changing the correction data for each of the solid-state recording elements in accordance with the recording characteristic of the corresponding one of the solid-state recording elements acquired by the acquisition means. The image recording apparatus can exactly detect the recording characteristic of each of the plurality of solid-state recording elements, and prevent nonuniformity in density caused by individual difference in the recording characteritic during image recording.
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公开(公告)号：US5485284A
公开(公告)日：1996-01-16
申请号：US998863
申请日：1992-12-30
申请人： Seita Shono , Akihiro Usami
发明人： Seita Shono , Akihiro Usami
摘要： An image reading apparatus measures, color by color, an average transmission-density signal based upon image information obtained from a color original through which light is transmitted, converts the measured average transmission-density signal of every color into a subject-lightness signal of every color, and effects a conversion into a reference color stimulus signal, which is indicated by the apex of a triangle substantially circumscribed by a spectrum locus of a predetermined chromaticity diagram, based upon the converted subject-lightness signal of every color.
摘要翻译： 图像读取装置根据从发送光的彩色原稿获得的图像信息，逐个颜色地测量平均透射密度信号，将所测量的每种颜色的平均透射密度信号转换成每个颜色的被摄体亮度信号 并且基于每个颜色的转换的被摄体亮度信号，将转换成基准颜色激励信号，该参考颜色激励信号由基本上由预定色度图的光谱轨迹限定的三角形的顶点指示。
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公开(公告)号：US5315415A
公开(公告)日：1994-05-24
申请号：US793011
申请日：1991-11-15
申请人： Takashi Kawai , Akihiro Usami , Ken-ichi Ohta , Yoshiko Horie , Seita Shono , Eiji Ohta
发明人： Takashi Kawai , Akihiro Usami , Ken-ichi Ohta , Yoshiko Horie , Seita Shono , Eiji Ohta
CPC分类号： H04N1/6025
摘要： Interpolation processing is applied to the output of a look-up table in which a correlation between color-separation signals and density signals ideal for these color-separation signals are stored, with a quantization error produced when quantizing the color-separation signals being adopted as an interpolation coefficient. The quantization and the interpolation processing are executed in a uniform color space.
摘要翻译： 插值处理被应用于查找表的输出，其中存储对于这些分色信号理想的色分离信号和浓度信号之间的相关性，当量化所采用的色分离信号时产生的量化误差为 内插系数。 量化和内插处理在均匀的颜色空间中执行。
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8.发明授权公开(公告)号：US06603566B1
公开(公告)日：2003-08-05
申请号：US09406719
申请日：1999-09-28
申请人： Seita Shono
发明人： Seita Shono
IPC分类号： G06K1500
CPC分类号： H04N1/4078
摘要： In order to stabilize image quality in both a copier mode and a printer mode without placing a significant burden on a user, there is provided an image forming apparatus including a reading device for reading an original document and producing first image signals; an input device for inputting second image signals from an external apparatus; an image forming device for forming an image on a recording medium on the basis of the first and second image signals produced by the reading device and input by the input device, respectively; a calibration device for calibrating image processing conditions corresponding to image forming characteristics in a copier mode; and a production device for producing image processing conditions in a printer mode on the basis of the calibrated image processing conditions, wherein the image forming apparatus has the copier mode in which an image is formed by using the reading device and the image forming device and the printer mode in which an image is formed by using the input device and the image forming device.
摘要翻译： 为了在复印机模式和打印机模式下稳定图像质量，而不会对用户造成重大负担，提供了一种图像形成装置，包括用于读取原始文档并产生第一图像信号的读取装置; 用于从外部设备输入第二图像信号的输入装置; 一种图像形成装置，用于根据由读取装置产生并由输入装置输入的第一和第二图像信号在记录介质上形成图像; 用于校准与复印机模式中的图像形成特性对应的图像处理条件的校准装置; 以及用于根据校准图像处理条件在打印机模式下产生图像处理条件的生产装置，其中图像形成装置具有通过使用读取装置和图像形成装置形成图像的复印机模式，以及 打印机模式，其中通过使用输入装置和图像形成装置形成图像。
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公开(公告)号：US5844699A
公开(公告)日：1998-12-01
申请号：US471881
申请日：1995-06-07
申请人： Akihiro Usami , Ken-ichi Ohta , Yoshiko Horie , Takashi Kawai , Seita Shono , Eiji Ohta
发明人： Akihiro Usami , Ken-ichi Ohta , Yoshiko Horie , Takashi Kawai , Seita Shono , Eiji Ohta
CPC分类号： H04N1/6027 , H04N1/6058
摘要： An image conversion apparatus for image-converting input color image signals, and outputting the converted signals to an output apparatus, allows execution of a plurality of different color processing operations, checks if an input color image falls within a color reproduction region of the output apparatus, and changes the color conversion processing result to be output depending on whether or not the input color image falls within the color reproduction region of the output apparatus. For example, when the input color image falls within the color reproduction region of the output apparatus, color reproduction color-matched with input color image signals is performed. When the input color image falls outside the reproduction region, color reproduction is performed by color conversion processing assuring highest color reproducibility.
摘要翻译： 一种图像转换装置，用于对输入彩色图像信号进行图像转换，并将转换的信号输出到输出装置，允许执行多个不同的颜色处理操作，检查输入彩色图像是否落入输出设备的颜色再现区域 并且根据输入彩色图像是否落入输出装置的颜色再现区域来改变要输出的颜色转换处理结果。 例如，当输入彩色图像落在输出装置的色彩再现区域内时，执行与输入彩色图像信号颜色匹配的颜色再现。 当输入彩色图像落在再现区域之外时，通过颜色转换处理执行颜色再现，确保最高的色彩再现性。
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公开(公告)号：US5594558A
公开(公告)日：1997-01-14
申请号：US460090
申请日：1995-06-02
申请人： Akihiro Usami , Ken-ichi Ohta , Yoshiko Horie , Takashi Kawai , Seita Shono , Eiji Ohta
发明人： Akihiro Usami , Ken-ichi Ohta , Yoshiko Horie , Takashi Kawai , Seita Shono , Eiji Ohta
CPC分类号： H04N1/6027 , H04N1/6058
摘要： An image conversion apparatus for image-converting input color image signals, and outputting the converted signals to an output apparatus, allows execution of a plurality of different color processing operations, checks if an input color image falls within a color reproduction region of the output apparatus, and changes the color conversion processing result to be output depending on whether or not the input color image falls within the color reproduction region of the output apparatus. For example, when the input color image falls within the color reproduction region of the output apparatus, color reproduction color-matched with input color image signals is performed. When the input color image falls outside the reproduction region, color reproduction is performed by color conversion processing assuring highest color reproducibility.
摘要翻译： 一种图像转换装置，用于对输入彩色图像信号进行图像转换，并将转换的信号输出到输出装置，允许执行多个不同的颜色处理操作，检查输入彩色图像是否落入输出设备的颜色再现区域 并且根据输入彩色图像是否落入输出装置的颜色再现区域来改变要输出的颜色转换处理结果。 例如，当输入彩色图像落在输出装置的色彩再现区域内时，执行与输入彩色图像信号颜色匹配的颜色再现。 当输入彩色图像落在再现区域之外时，通过颜色转换处理执行颜色再现，确保最高的色彩再现性。
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