公开(公告)号：US5229868A

公开(公告)日：1993-07-20

申请号：US571350

申请日：1990-08-23

申请人： Yoshimitsu Kanno ,  Toshiharu Kurosawa ,  Hidehiko Kawakami ,  Hiroaki Kotera ,  Hiroyoshi Tsuchiya ,  Hideaki Ohira ,  Mutuo Hashizume

发明人： Yoshimitsu Kanno ,  Toshiharu Kurosawa ,  Hidehiko Kawakami ,  Hiroaki Kotera ,  Hiroyoshi Tsuchiya ,  Hideaki Ohira ,  Mutuo Hashizume

IPC分类号： H04N1/40

CPC分类号： H04N1/40075 ,  H04N1/40068

摘要： A correspondence relation between a structure of a bi-level pattern A and a structure of a bi-level pattern B is statistically learned by use of a learning high-density image. The bi-level pattern A forms a partial region of a low-density character and line image except a screened dot image. The bi-level pattern B forms a corresponding partial region of a desired high-density image. A judgement is made as to whether the low-density image is equal to or different from a screened dot image. Reference pixels are selected from the partial region of the low-density image. The low-density bi-level pattern A is converted into the high-density bi-level pattern B on the basis of a result of the learning by use of the selected reference pixels when the low-density image is different from a screened dot image. A pixel of the low-density image is repeated to convert the low-density image into the high-density image when the low-density image is equal to a screend dot image.

公开(公告)号：US4929978A

公开(公告)日：1990-05-29

申请号：US261254

申请日：1988-10-24

申请人： Katsuhiro Kanamori ,  Yoshimitsu Kanno ,  Toshiharu Kurosawa ,  Hidehiko Kawakami ,  Motohiko Naka ,  Hiroaki Kotera

发明人： Katsuhiro Kanamori ,  Yoshimitsu Kanno ,  Toshiharu Kurosawa ,  Hidehiko Kawakami ,  Motohiko Naka ,  Hiroaki Kotera

IPC分类号： H04N1/60

CPC分类号： H04N1/6005 ,  H04N1/60 ,  H04N1/6025 ,  H04N1/6033

摘要： A color correction method applicable to a digital processing type of color copier, whereby a set of color patches of respectively different sample colors is printed using a set of printing data values, the color patches are then scanned and analyzed to obtain color patch input data values by the color copier, and each of all of the possible input color data values that can be produced by the scanner/analyzer section of the color copier is then related to one of the color patch input data values which is closest thereto in a 3-dimensional color space. Each of these possible input color data values is thereby related to an appropriate color printing value, whereby a color correction table can be generated which provides correction accuracy that is independent of non-linearity of color printing characteristics.

摘要翻译： 适用于数字处理类型的彩色复印机的颜色校正方法，由此使用一组打印数据值打印分别不同样品颜色的一组色块，然后扫描和分析色标，以获得色块输入数据值 通过彩色复印机，并且可以由彩色复印机的扫描仪/分析器部分产生的所有可能的输入颜色数据值中的每一个然后与其中最接近的彩色复印机中的一个色斑输入数据值相关， 三维色彩空间。 这些可能的输入颜色数据值中的每一个因此与适当的彩色打印值相关，由此可以产生提供与彩色打印特性的非线性无关的校正精度的颜色校正表。

公开(公告)号：US4890167A

公开(公告)日：1989-12-26

申请号：US110082

申请日：1987-10-16

申请人： Katsuo Nakazato ,  Hiroyoshi Tsuchiya ,  Toshiharu Kurosawa ,  Yuji Maruyama ,  Kiyoshi Takahashi

发明人： Katsuo Nakazato ,  Hiroyoshi Tsuchiya ,  Toshiharu Kurosawa ,  Yuji Maruyama ,  Kiyoshi Takahashi

IPC分类号： G09G3/20 ,  G09G3/28 ,  H04N1/405

CPC分类号： G09G3/2059 ,  H04N1/4052 ,  G09G2310/0286 ,  G09G3/28

摘要： An image signal processing circuit for converting a continuous tone image signal to a bi-level image signal, for producing a spatial gray scale image on a bi-level display device such as a gas plasma display panel. Respective values of apportionment factors (K.sub.A to K.sub.D) used for apportioning a bi-level conversion error of each picture element of the image among a plurality of picuture elements (A to D) positioned peripehrally adjacent thereto are periodically altered, in a periodic or random succession of values, to thereby effectively eliminate the generation of a texture pattern in display regions corresponding to areas of uniform density in the original image.

摘要翻译： 一种用于将连续色调图像信号转换为双电平图像信号的图像信号处理电路，用于在诸如气体等离子体显示面板的双电平显示装置上产生空间灰度图像。 用于分配在与其周边定位的多个图形元素（A至D）中的图像的每个像素的双电平转换误差的分配因子（KA至KD）的值周期性地或周期性地改变 从而有效地消除了对应于原始图像中均匀密度区域的显示区域中的纹理图案的产生。

公开(公告)号：US4692811A

公开(公告)日：1987-09-08

申请号：US758961

申请日：1985-07-25

申请人： Hiroyoshi Tsuchiya ,  Toshiharu Kurosawa ,  Hirotaka Otsuka ,  Yuuji Maruyama ,  Katsuo Nakazato

发明人： Hiroyoshi Tsuchiya ,  Toshiharu Kurosawa ,  Hirotaka Otsuka ,  Yuuji Maruyama ,  Katsuo Nakazato

IPC分类号： H04N1/405 ,  H04N1/40

CPC分类号： H04N1/4052

摘要： The invention relates to a method for processing an image signal such that areas of original image data are sequentially scanned with a scanning window having a size corresponding to M picture elements in units of a predetermined number of picture elements so as to perform halftone display in accordance with black-and-white binary distribution with respect to the signal levels of the picture elements within the scanning window every time the scanning window is moved. The picture elements within the scanning window are assigned an order of preference in accordance with their image signal levels. A sum of the image signal levels of the picture elements within the scanning window is calculated, and A and N of the equations S=C.times.N+A are calculated, where C is a predetermined image signal level (e.g., black level and maximum level), N is an integer, and A is the image signal level falling within the range O.ltoreq.A

摘要翻译： 本发明涉及一种用于处理图像信号的方法，使得以预定数量的图像元素为单位的具有与M个图像元素相对应的尺寸的扫描窗口顺序地扫描原始图像数据的区域，以便按照该方式执行半色调显示 每次扫描窗口移动时，相对于扫描窗口内的图像元素的信号电平，具有黑白二进制分布。 扫描窗口内的图像元素根据其图像信号电平被分配优先顺序。 计算扫描窗口内的像素的图像信号电平的和，并计算等式S = CxN + A的A和N，其中C是预定的图像信号电平（例如，黑电平和最大电平） ，N是整数，A是图像信号电平落在范围O <= A

公开(公告)号：US4924322A

公开(公告)日：1990-05-08

申请号：US324780

申请日：1989-03-17

申请人： Toshiharu Kurosawa ,  Hiroyoshi Tsuchiya ,  Yuji Maruyama ,  Katsuo Nakazato

发明人： Toshiharu Kurosawa ,  Hiroyoshi Tsuchiya ,  Yuji Maruyama ,  Katsuo Nakazato

IPC分类号： H04N1/405 ,  H04N1/40

CPC分类号： H04N1/4053

摘要： An image signal processing apparatus for converting input signal values representing density levels of successive picture elements of an image to corresponding bi-level signal values, whereby a conversion error for an object picture element is apportioned among a set of unprocessed adjacent picture elements, to update respective values of accumulated error. Each input signal value is compensated, prior to conversion, by a value derived from the total accumulated errors of the object picture element and these adjacent picture elements, while the conversion error is derived by subtracting from the bi-level output value a value obtained by compensating the input signal by the accumulated error for the object picture element.

公开(公告)号：US4891710A

公开(公告)日：1990-01-02

申请号：US136486

申请日：1987-12-21

申请人： Katsuo Nakazato ,  Toshiharu Kurosawa ,  Yuji Maruyama ,  Kiyoshi Takahashi ,  Hiroyoshi Tsuchiya

发明人： Katsuo Nakazato ,  Toshiharu Kurosawa ,  Yuji Maruyama ,  Kiyoshi Takahashi ,  Hiroyoshi Tsuchiya

IPC分类号： H04N1/405

CPC分类号： H04N1/4052 ,  H04N1/4053

摘要： An image signal processing circuit for converting step-gradation density values (I.sub.xy) of successive picture elements to bi-level values (P.sub.xy) for display by a bi-level display device, in which a bi-level error (E.sub.xy) between a bi-level value determined for a picture element and an appropriate density value for the element is apportioned among a set of peripherally adjacent picture elements (A to D) by computing a corresponding set of error apportionment values (G.sub.A to G.sub.D), and in which a difference between the sum total of these apportionment values and the bi-level error is derived, and error apportionment is modified such as to eliminate the effects of this difference. Improved reproduction is thereby attained of image regions which are of uniformly high density or low density.

公开(公告)号：US08098953B2

公开(公告)日：2012-01-17

申请号：US12827264

申请日：2010-06-30

申请人： Tatsumi Watanabe ,  Akio Kojima ,  Yasuhiro Kuwahara ,  Yusuke Monobe ,  Toshiharu Kurosawa ,  Hirotaka Oku

发明人： Tatsumi Watanabe ,  Akio Kojima ,  Yasuhiro Kuwahara ,  Yusuke Monobe ,  Toshiharu Kurosawa ,  Hirotaka Oku

IPC分类号： G06K9/40 ,  G06K9/00 ,  H04N1/40 ,  G03F3/08 ,  G09G1/14 ,  G09G3/28 ,  G09G3/30 ,  G09G5/00 ,  G09G5/02 ,  G09G5/10

CPC分类号： H04N1/6027 ,  G06T5/008 ,  G06T5/20 ,  H04N5/142 ,  H04N5/20

摘要： An image processing apparatus for automatically improving the contrast of an input image that is obtained from a digital camera or the like, and obtaining a sharper and clearing image. A contrast improvement unit performs a contrast improvement process on the input image by comparing an object pixel in the input image with pixels in the surrounding area. An image combination unit combines the enhanced image obtained by the contrast improvement process with the input image. The combined image is then output to a desired device such as a printer by an image output unit.

摘要翻译： 一种图像处理装置，用于自动改善从数字照相机等获得的输入图像的对比度，并获得更清晰和清晰的图像。 对比度改善单元通过将输入图像中的对象像素与周边区域中的像素进行比较来对输入图像执行对比度改善处理。 图像组合单元将通过对比度改进处理获得的增强图像与输入图像相结合。 然后，组合的图像由图像输出单元输出到期望的装置，例如打印机。

公开(公告)号：US20080107360A1

公开(公告)日：2008-05-08

申请号：US11980581

申请日：2007-10-31

申请人： Haruo Yamashita ,  Akio Kojima ,  Toshiharu Kurosawa ,  Yasuhiro Kuwahara ,  Tatsumi Watanabe ,  Yusuke Monobe ,  Takeshi Ito

发明人： Haruo Yamashita ,  Akio Kojima ,  Toshiharu Kurosawa ,  Yasuhiro Kuwahara ,  Tatsumi Watanabe ,  Yusuke Monobe ,  Takeshi Ito

IPC分类号： G06K9/22 ,  G06K9/34

CPC分类号： G06T5/004 ,  G06T5/007 ,  G06T5/40 ,  G06T2207/10024

摘要： The invention provides a visual processing device that has a hardware configuration that does not depend on the visual processing to be achieved. A visual processing device 1 is provided with a spatial processing portion 2 and a visual processing portion 3. The spatial processing portion 2 performs predetermined processing with respect to an input signal IS that has been received as input, and outputs the result as an unsharp signal US. The visual processing portion 3 outputs an output signal OS, which is the input signal IS after visual processing, based on a two-dimensional LUT 4 that lists the relationship between the input signal IS that has been received as input and the unsharp signal US, and the output signal OS.

摘要翻译： 本发明提供一种视觉处理装置，其具有不依赖于要实现的视觉处理的硬件配置。 视觉处理装置1具有空间处理部2和视觉处理部3。 空间处理部分2对已经作为输入接收的输入信号IS执行预定处理，并且将结果输出为钝化信号US。 可视处理部分3基于列出已经被接收为输入的输入信号IS与钝化信号US之间的关系的二维LUT 4，输出作为可视处理之后的输入信号IS的输出信号OS， 和输出信号OS。

公开(公告)号：US20070165048A1

公开(公告)日：2007-07-19

申请号：US10571123

申请日：2004-09-10

申请人： Haruo Yamashita ,  Akio Kojima ,  Takeshi Ito ,  Yasuhiro Kuwahara ,  Tatsumi Watanabe ,  Yusuke Monobe ,  Toshiharu Kurosawa

发明人： Haruo Yamashita ,  Akio Kojima ,  Takeshi Ito ,  Yasuhiro Kuwahara ,  Tatsumi Watanabe ,  Yusuke Monobe ,  Toshiharu Kurosawa

IPC分类号： G09G5/02

CPC分类号： G06T5/40 ,  G06T5/009 ,  G06T2207/10024 ,  G09G5/02 ,  H04N9/67 ,  H04N9/73

摘要： The present invention provides an image processing device with which the storage capacity for storing lookup tables can be reduced while allowing the degree to which various color processing operations are performed to be freely adjusted. The image processing device 10 performs color processing of an image signal d2, and is provided with a profile creation portion 15 and a color processing execution portion 16. The profile creation portion 15 creates a new color transformation profile that achieves a predetermined color processing to a predetermined degree of processing based on a plurality of base color transformation profiles that achieve the predetermined color processing to different degrees of processing. The color processing execution portion 16 executes color processing of the image signal d2 based on the new color transformation profile that has been created.

摘要翻译： 本发明提供一种图像处理装置，能够减少用于存储查找表的存储容量，同时允许执行各种颜色处理操作的程度自由地调整。 图像处理装置10执行图像信号d 2的颜色处理，并且设置有简档创建部分15和颜色处理执行部分16。 轮廓创建部分15基于对于不同程度的处理实现预定颜色处理的多个基本颜色变换曲线，创建将预定颜色处理实现到预定处理程度的新颜色变换轮廓。 颜色处理执行部分16基于已经创建的新的颜色变换曲线来执行图像信号d 2的颜色处理。

公开(公告)号：US20050195424A1

公开(公告)日：2005-09-08

申请号：US10050175

申请日：2002-01-18

申请人： Akio Kojima ,  Tatsumi Watanabe ,  Yasuhiro Kuwahara ,  Toshiharu Kurosawa ,  Yusuke Monobe ,  Hirotaka Oku

发明人： Akio Kojima ,  Tatsumi Watanabe ,  Yasuhiro Kuwahara ,  Toshiharu Kurosawa ,  Yusuke Monobe ,  Hirotaka Oku

IPC分类号： G06T9/00 ,  H04N1/64 ,  G06F13/00 ,  H04N1/32 ,  H04N1/41 ,  H04N1/56

CPC分类号： G06T9/005

摘要： The invention relates to the data transfer method, the image processing method, the data transfer system and the image data processor for transferring digital data, especially for transferring image data. The invention has an object to provide the data transfer method, the image processing method, the data transfer system and the image data processor, wherein the compression ratio is changed corresponding to the transfer rate between connecting devices and the lack of image is avoided. The detecting means detects the data transfer capability of the transmission channel and the transfer end, and the control means changes the compression ratio of the digital data corresponding to the data transfer capability. Subsequently, the compressing means compresses the digital data based on the changed compression ratio and the transfer means transfers the compressed digital data to the transfer end.

摘要翻译： 本发明涉及用于传送数字数据的数据传输方法，图像处理方法，数据传输系统和图像数据处理器，特别是用于传送图像数据。 本发明的目的是提供数据传送方法，图像处理方法，数据传送系统和图像数据处理器，其中，压缩比根据连接装置之间的传送速率而变化，并且避免了图像的缺失。 检测装置检测传输信道和传送端的数据传输能力，并且控制装置改变对应于数据传输能力的数字数据的压缩比。 随后，压缩装置基于改变的压缩比压缩数字数据，并且传送装置将压缩的数字数据传送到传送端。