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

CPC分类号： H04N1/405 ,  G06K9/38 ,  H04N1/403

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。

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.

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

IPC分类号： G06T5/00 ,  H04N1/403 ,  H04N1/405 ,  H04N1/41 ,  G06F15/00 ,  H04N1/00

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。

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

IPC分类号： H04N1/60 ,  H04N1/56

CPC分类号： H04N1/60 ,  H04N1/603

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。

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。

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

IPC分类号： H04N1/60 ,  H04N1/46

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。

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

IPC分类号： H04N1/60 ,  G03K3/08

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。

公开(公告)号：US5436736A

公开(公告)日：1995-07-25

申请号：US337454

申请日：1994-11-04

申请人： Seita Shono

发明人： Seita Shono

IPC分类号： H04N1/405 ,  G06K9/38 ,  G06T5/00 ,  H04N1/40 ,  H04N1/403 ,  G06F15/00

CPC分类号： G06K9/38 ,  H04N1/4053

摘要： Disclosed is a binarization method for binarizing multi-level image data of an object pixel in accordance with binarized data of neighboring pixels of the object pixel which have been binarized. Multi-level image data corresponding to an object pixel are input, then a first portion of the input data is binarized in accordance with a random number, and a second portion of the data is binarized in accordance with the binarized data. The binary data of the first portion and the binary data of the second portion are output as binary data of the object pixel.

摘要翻译： 公开了一种二值化方法，用于根据已被二值化的对象像素的相邻像素的二值化数据二值化对象像素的多级图像数据。 输入对象像素对应的多级图像数据，然后根据随机数对输入数据的第一部分进行二值化处理，根据二值化数据对数据的第二部分进行二值化处理。 第二部分的二进制数据和第二部分的二进制数据作为对象像素的二进制数据输出。

公开(公告)号：US5394250A

公开(公告)日：1995-02-28

申请号：US955265

申请日：1992-10-01

申请人： Seita Shono

发明人： Seita Shono

IPC分类号： H04N1/405 ,  H04N1/40

CPC分类号： H04N1/4053

摘要： An image processing apparatus, which stochastically binary-converts lower-bit data of a pixel of interest to improve image quality in a highlight portion, as well as in a low-density portion, is provided. In an image processing apparatus for quantizing multi-value image data to binary data, multi-value image data of a pixel of interest is divided into upper- and lower-bit data by a calculator (24). The lower-bit data is binary-converted by a comparator (25) using a normalized uniform random number generated by a random number generator (26) as a threshold value. The binary-converted data is added to the upper-bit data of the image signal of the pixel of interest by an adder (22), and the sum data is binary-converted by a comparator (18) using one of a plurality of weighted average values of a plurality of pixels near the pixel of interest, which values are calculated by a calculator (600), on the basis of binary data of pixels, which have already been binary-converted before the pixel of interest. At this time, the density is preserved by distributing a density error generated upon binary conversion to non-binary-converted pixels near the pixel of interest by a circuit including a subtracter (17), an adder (22), and the like.

摘要翻译： 提供了一种图像处理装置，其随机地二进制转换感兴趣的像素的低位数据以提高高亮部分以及低密度部分中的图像质量。 在用于将多值图像数据量化到二进制数据的图像处理装置中，通过计算器（24）将感兴趣像素的多值图像数据分成高位数据和低位数据。 使用由随机数发生器（26）生成的归一化均匀随机数作为阈值，由比较器（25）对低位数据进行二进制转换。 二进制转换数据通过加法器（22）加到感兴趣像素的图像信号的高位数据中，并且通过比较器（18）对和数进行二进制转换，其中多个加权 基于已经在感兴趣的像素之前进行二进制转换的像素的二进制数据，由计算器（600）计算出所关注的像素附近的多个像素的平均值。 此时，通过由包括减法器（17），加法器（22）等的电路将二进制转换后产生的密度误差分配给感兴趣像素附近的非二进制转换像素，从而保持密度。

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.