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公开(公告)号：US5828816A
公开(公告)日：1998-10-27
申请号：US688275
申请日：1996-07-29
申请人： Takashi Kise , Takatoshi Ohta , Nobuo Ohnuma
发明人： Takashi Kise , Takatoshi Ohta , Nobuo Ohnuma
CPC分类号： H04N1/6058 , H04N1/6075
摘要： An image processor which improves the reproducibility of the color blue, includes an input device which inputs color image data, and a color correction device which performs color correction of the input color image data based on color correction parameters. An output device outputs the color corrected input image data to an image forming device that forms an image by using recording materials corresponding to a plurality of colors including magenta and cyan. The color correction device decreases the amount of magenta used for image formation, and uses the color correction parameters to suppress the elimination of gradation in a color zone formed by cyan.
摘要翻译： 一种提高蓝色再现性的图像处理器包括输入彩色图像数据的输入装置和基于颜色校正参数对输入彩色图像数据进行颜色校正的颜色校正装置。 输出设备通过使用与包括品红和青色的多种颜色相对应的记录材料，将修正颜色的输入图像数据输出到形成图像的图像形成装置。 颜色校正装置减少用于图像形成的品红色的量，并且使用颜色校正参数来抑制由青色形成的色区中的灰度的消除。
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公开(公告)号：US06693731B1
公开(公告)日：2004-02-17
申请号：US08689096
申请日：1996-07-30
申请人： Nobuo Ohnuma , Takatoshi Ohta , Yuji Akiyama , Yoko Hirosugi , Takahiro Moro , Masahiro Nagatani , Kazuyoshi Sumiuchi
发明人： Nobuo Ohnuma , Takatoshi Ohta , Yuji Akiyama , Yoko Hirosugi , Takahiro Moro , Masahiro Nagatani , Kazuyoshi Sumiuchi
IPC分类号： G03F308
CPC分类号： H04N1/6022 , H04N1/6027
摘要： An image processing apparatus having a first black generating unit for generating a black component from input image data of signals representative of a plurality of color components, a color correcting unit for correcting the colors of the signals representative of the plurality of color components and a signal representative of the black component and outputting the color corrected signals representative of the plurality of color components, and a second black generating unit for generating a signal representative of a black component from the color corrected signals.
摘要翻译： 一种具有第一黑色生成单元的图像处理装置，用于从表示多个颜色分量的信号的输入图像数据生成黑色分量;颜色校正单元，用于校正表示多个颜色分量的信号的颜色;以及信号 代表黑色分量并输出表示多个颜色分量的色彩校正信号;以及第二黑色生成单元，用于从色彩校正信号产生表示黑色分量的信号。
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公开(公告)号：US5751929A
公开(公告)日：1998-05-12
申请号：US594439
申请日：1996-01-31
申请人： Nobuo Ohnuma , Takatoshi Ohta
发明人： Nobuo Ohnuma , Takatoshi Ohta
CPC分类号： H04N1/58 , H04N1/4092 , H04N2201/0458
摘要： An image processing apparatus is constructed by a C signal multi-level forming circuit, an M signal multi-level forming circuit, and a Y signal multi-level forming circuit for receiving multi-level color image data and multi-level black image data of a low resolution, converting the inputted multi-level color image data into data of at least three levels consisting of two bits, and converting into data of a higher resolution than the input data; a K signal binarization circuit and a smoothing processing unit for converting the inputted black image data into the binary data and converting into data of a higher resolution than the input data by a smoothing process, and a print unit for forming a color image on the basis of the binary C, M, Y and K data converted into the high resolution data. The multi-level color data and black image data are doubled and a multi-level memory to store the doubled data is unnecessary. The recording can be performed at a high resolution.
摘要翻译： 图像处理装置由C信号多电平形成电路，M信号多电平形成电路和Y信号多电平形成电路构成，用于接收多级彩色图像数据和多电平黑色图像数据 低分辨率，将输入的多级彩色图像数据转换成由两比特组成的至少三个级别的数据，并转换成比输入数据更高分辨率的数据; K信号二值化电路和平滑处理单元，用于通过平滑处理将输入的黑色图像数据转换为二进制数据并转换成比输入数据更高的分辨率的数据，以及用于在基础上形成彩色图像的打印单元 的二进制C，M，Y和K数据转换成高分辨率数据。 多级彩色数据和黑色图像数据被加倍，并且不需要用于存储双倍数据的多级存储器。 记录可以以高分辨率进行。
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公开(公告)号：US5309548A
公开(公告)日：1994-05-03
申请号：US90624
申请日：1993-07-12
申请人： Takatoshi Ohta , Nobuo Ohnuma
发明人： Takatoshi Ohta , Nobuo Ohnuma
CPC分类号： G06K15/02 , G06K2215/004 , G06K2215/0042 , G06K2215/0094
摘要： There are provided a pattern generating method and apparatus for generating a character/symbol pattern. The apparatus comprises a font memory to store outline font data of characters, symbols, and the like, an image memory to store image data based on the outline font data stored in the font memory, storing means for storing the font image based on the outline font data into the image memory, a color data generating circuit to generate color data in accordance with the designated color information, and a painting circuit to paint the inside of the stored font image by the color data. The color data generating circuit executes a masking operation on the basis of the color information which was designated and input and generates the color data. Thus an accurate color image can be reproduced.
摘要翻译： 提供了一种用于生成字符/符号图案的图案生成方法和装置。 该装置包括用于存储字符，符号等的轮廓字体数据的字体存储器，用于基于存储在字体存储器中的轮廓字体数据来存储图像数据的图像存储器，用于基于轮廓存储字体图像的存储装置 字体数据输入到图像存储器中，彩色数据产生电路根据指定的颜色信息产生颜色数据，以及绘制电路，用于通过彩色数据绘制存储的字体图像的内部。 彩色数据产生电路根据指定并输入的颜色信息执行掩蔽操作，并生成彩色数据。 因此，可以再现准确的彩色图像。
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公开(公告)号：US06574010B1
公开(公告)日：2003-06-03
申请号：US08688777
申请日：1996-07-31
申请人： Nobuo Ohnuma , Takatoshi Ohta , Yuji Akiyama , Yoko Hirosugi , Takahiro Moro , Masahiro Nagatani , Kazuyoshi Sumiuchi
发明人： Nobuo Ohnuma , Takatoshi Ohta , Yuji Akiyama , Yoko Hirosugi , Takahiro Moro , Masahiro Nagatani , Kazuyoshi Sumiuchi
IPC分类号： G03F308
CPC分类号： H04N1/6025
摘要： An image processor includes an input unit which inputs color image data, and a color correction unit which effects under color removal processing and black generation processing on the color image data conforming to the characteristic of a recording medium, and outputs data indicative of a plurality of color components including a black component. The color correction unit effects the under color removal processing and the black generation processing so that the total output level of the data indicative of the plurality of color components including the black component may assume a value conforming to the color image data.
摘要翻译： 图像处理器包括输入彩色图像数据的输入单元和对彩色图像数据进行颜色去除处理和黑色生成处理的颜色校正单元，该彩色图像数据符合记录介质的特性，并输出表示多个 颜色成分包括黑色成分。 颜色校正单元执行底色去除处理和黑色生成处理，使得指示包括黑色成分的多个颜色成分的数据的总输出电平可以呈现符合彩色图像数据的值。
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公开(公告)号：US5610997A
公开(公告)日：1997-03-11
申请号：US426633
申请日：1995-04-21
申请人： Takatoshi Ohta , Nobuo Ohnuma
发明人： Takatoshi Ohta , Nobuo Ohnuma
CPC分类号： H04N1/6022
摘要： There is disclosed an image processing system including a first memorizing means for storing information according to input data, a second memorizing means for storing output signals obtained by performing processes of a plurality of procedures for input data, comparison means for comparing new input data with immediately preceding input data which has been stored in the first memorizing means, and switching means for switching in accordance with the output from the comparison means if the processes of the plurality of procedures are performed to output data, or if the data stored in the second memorizing means are output.
摘要翻译： 公开了一种图像处理系统，包括：第一存储装置，用于根据输入数据存储信息;第二存储装置，用于存储通过执行用于输入数据的多个过程的处理而获得的输出信号;比较装置，用于立即比较新的输入数据 存储在第一存储装置中的先前输入数据以及如果执行多个过程的处理以输出数据，或者如果存储在第二存储器中的数据的切换装置根据比较装置的输出进行切换 输出方式。
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7.发明授权Image processing apparatus, image processing method, computer program and computer-readable storage medium 失效图像处理装置，图像处理方法，计算机程序和计算机可读存储介质公开(公告)号：US07327491B2
公开(公告)日：2008-02-05
申请号：US10259624
申请日：2002-09-30
申请人： Minako Kato , Takatoshi Ohta , Toshinori Igari
发明人： Minako Kato , Takatoshi Ohta , Toshinori Igari
CPC分类号： H04N1/52 , H04N1/40087
摘要： For M (magenta) and C (cyan), in a case of generating, e.g., ternary data of C0 to C2 and M0 to M2 respectively by using a look-up table on the basis of an error diffusion method, in a highlight portion of input M and C data (to which errors Ce and Me have been added respectively), a conversion space of correlating these data is used, while in a high-density portion, a conversion space equivalent to ordinary error diffusion is used. Thus, in a case of converting multivalued color image data into data of a lesser number of bits than the number of bits of color components constituting the multivalued color image data, it is possible to maintain excellent tonality on the entire image, and particularly to control graininess by preventing image quality deterioration in the highlight area.
摘要翻译： 对于M（品红色）和C（青色），在通过使用基于误差扩散方法的查找表分别产生C 0至C 2和M 0至M 2的三进制数据的情况下， 在输入M和C数据的高亮部分（分别添加有错误Ce和Me）的高亮部分中，使用与这些数据相关的转换空间，而在高密度部分中，与普通误差扩散相当的转换空间是 用过的。 因此，在将多值彩色图像数据转换成比构成多值彩色图像数据的色彩分量的位数少的数据的数据的情况下，可以在整个图像上保持优良的色调，特别是控制 通过防止高亮区域的图像质量劣化而发生颗粒感。
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公开(公告)号：US6124944A
公开(公告)日：2000-09-26
申请号：US870728
申请日：1997-06-06
申请人： Takatoshi Ohta
发明人： Takatoshi Ohta
CPC分类号： H04N1/6058
摘要： In a situation where information indicating whether or not a color is capable of being reproduced by an output device which is to output the entered image data is held by a three-dimensional LUT, information indicative of a color incapable of being reproduced is held on at least the boundary surfaces of the LUT. By referring to the LUT, it is judged whether or not a color expressed by the entered image data is capable of being reproduced by the output device.
摘要翻译： 在表示是否能够输出输出图像数据的输出装置能够再现颜色的信息由三维LUT保持的情况下，表示不能再现的颜色的信息被保持在 最少是LUT的边界面。 通过参考LUT，判断由输入的图像数据表示的颜色能否被输出装置再现。
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公开(公告)号：US5982998A
公开(公告)日：1999-11-09
申请号：US848614
申请日：1997-04-29
CPC分类号： G06K15/102 , G06K2215/0071
摘要： A solid area and edges are detected from original data to be printed. An arbitrary raster of the solid area is shifted by a unit of dot-to-dot distance corresponding to a resolution having twice the dot density of the resolution of the original data, while preserving the data representing the edges so that the edges remain unchanged. Printing is performed on the basis of the above shifted data. The shifting of the dot data prevents the generation of mist and makes it possible to print a high-quality image at a high speed. Thus, the invention provides a printing method and apparatus capable of forming a high-quality image at a high speed.
摘要翻译： 从要打印的原始数据中检测到固体区域和边缘。 固体区域的任意光栅以对应于具有原始数据的分辨率的两倍的分辨率的分辨率的点对点距离移位，同时保留表示边缘的数据，使得边缘保持不变。 基于上述偏移数据进行打印。 点数据的移动防止了雾的产生，并且使得可以高速打印高质量的图像。 因此，本发明提供能够高速形成高质量图像的打印方法和装置。
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公开(公告)号：US5457549A
公开(公告)日：1995-10-10
申请号：US380938
申请日：1995-01-31
申请人： Shuichi Kumada , Takatoshi Ohta
发明人： Shuichi Kumada , Takatoshi Ohta
摘要： The present invention relates to an image processing apparatus and method and, more particularly to a technique which controls color correction in accordance with the features of an input image. Especially when the input image is a specific value, the present invention speeds up the process, and improves the color reproducibility without performing color correction.
摘要翻译： 本发明涉及一种图像处理装置和方法，更具体地涉及一种根据输入图像的特征来控制颜色校正的技术。 特别是当输入图像是特定值时，本发明加速了处理，并且在不进行颜色校正的情况下提高了颜色再现性。
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