公开(公告)号：US4741046A

公开(公告)日：1988-04-26

申请号：US757653

申请日：1985-07-22

申请人： Masahiko Matsunawa ,  Yasufumi Emori ,  Yoshizumi Yasuda

发明人： Masahiko Matsunawa ,  Yasufumi Emori ,  Yoshizumi Yasuda

IPC分类号： H04N1/40 ,  G06K9/34

CPC分类号： H04N1/40062

摘要： A method of discriminating pictures, wherein a picture is binary-coded. The variation in the number of foreground pixels constituting foreground pixel regions within a discrimination unit area is determined. Alternatively the variation in the distance between said foreground pixel regions is determined. It is then determined by a known relationship whether the discrimination unit area is of a dot gradation picture or not. If the picture is not a dot gradation picture, the rate of background is measured to determine whether the above discrimination unit area is of a line picture or of a continuous tone picture.

摘要翻译： 一种辨别图像的方法，其中图像是二进制编码的。 确定构成识别单位区域内的前景像素区域的前景像素数量的变化。 或者，确定所述前景像素区域之间的距离的变化。 然后，通过已知的关系确定判别单位区域是否为点分级图像。 如果图像不是点灰度图像，则测量背景的速率以确定上述辨别单位区域是线路图像还是连续色调图像。

公开(公告)号：US5933252A

公开(公告)日：1999-08-03

申请号：US370354

申请日：1995-01-09

申请人： Yasufumi Emori ,  Kazuhiko Onuma ,  Tadataka Koga ,  Yoshizumi Yasuda ,  Yoshinobu Mita ,  Osamu Yamada

发明人： Yasufumi Emori ,  Kazuhiko Onuma ,  Tadataka Koga ,  Yoshizumi Yasuda ,  Yoshinobu Mita ,  Osamu Yamada

IPC分类号： H04N1/60 ,  H04N1/46

CPC分类号： H04N1/6058

摘要： An image processing method and apparatus for converting image data for use in a color CRT and an image processing device each having a different color reproducible range, for example, a color printer. Color component data of color image data corresponding to a most parts of a color reproducible range of the color printer having a color reproducible region which is narrower than that of the color CTR is not converted. The hue and the brightness of color component data of color image data exceeding the color reproducible range of the color printer are not substantially converted but only chromaticness is converted. A part deviated from the color reproducible range can be approximated to the outer periphery of the reproducible range. Furthermore, the most part of the color reproducible range is correctly color-reproduced and the color image is converted so as to make a portion of the same to be a compressed space of an all color space. Therefore, a color image can be converted such that a color image can be reproduced while maintaining color continuity even if the color deviates from the color reproducible range of the color printer.

摘要翻译： 一种图像处理方法和装置，用于转换用于彩色CRT的图像数据和每个具有不同颜色再现范围的图像处理装置，例如彩色打印机。 对应于具有比彩色CTR的窄的颜色可再现区域的彩色打印机的彩色可再现范围的大部分的彩色图像数据的颜色分量数据不被转换。 彩色图像数据的颜色分量数据的色调和亮度超过彩色打印机的色彩可再现范围，基本上不进行转换，只有色度被转换。 偏离颜色再现范围的部分可以近似于可再现范围的外围。 此外，颜色可再现范围的大部分是正确的颜色再现，并且彩色图像被转换，以使其一部分成为全色空间的压缩空间。 因此，即使颜色偏离彩色打印机的颜色再现范围，也可以转换彩色图像，使得可以在保持颜色连续性的同时再现彩色图像。

公开(公告)号：US5742296A

公开(公告)日：1998-04-21

申请号：US479859

申请日：1995-06-07

申请人： Osamu Yamada ,  Susumu Sugiura ,  Yoshizumi Yasuda

发明人： Osamu Yamada ,  Susumu Sugiura ,  Yoshizumi Yasuda

IPC分类号： B41J2/525 ,  G03F3/08 ,  H04N1/40 ,  H04N1/46 ,  H04N1/60

CPC分类号： H04N1/6058

摘要： An image processing method for executing image data conversion between different types of input and output devices having different color reproduction ranges, and an apparatus therefor are disclosed. A device independent color reproduction range is calculated in, e.g., a CIE L*a*b* uniform color space, and a color reproduction range depending on a device such as a binary recording color printer is calculated. Only a saturation is compressed at a compression ratio corresponding to the ratio of the two calculated color reproduction ranges. Thus, when an output device outputs a color image, image qualities (color reproducibilities) of input and output images can be equalized. Even when a color outside the color reproduction range of the output device is to be output, a satisfactory output which preserves gradation characteristics can be obtained.

摘要翻译： 公开了一种用于在具有不同颜色再现范围的不同类型的输入和输出装置之间执行图像数据转换的图像处理方法及其装置。 在例如CIE L * a * b *均匀颜色空间中计算与设备无关的色彩再现范围，并且计算取决于诸如二进制记录彩色打印机的设备的色彩再现范围。 只有饱和度以对应于两个计算出的颜色再现范围的比率的压缩比进行压缩。 因此，当输出设备输出彩色图像时，输入和输出图像的图像质量（颜色再现性）可以相等。 即使输出输出装置的颜色再现范围之外的颜色，也能获得保持灰度特性的令人满意的输出。

公开(公告)号：US4983263A

公开(公告)日：1991-01-08

申请号：US437836

申请日：1989-11-17

申请人： Yoshizumi Yasuda ,  Nobuaki Wada ,  Yukio Suzuki ,  Haruhisa Watai

发明人： Yoshizumi Yasuda ,  Nobuaki Wada ,  Yukio Suzuki ,  Haruhisa Watai

IPC分类号： C25D3/56

CPC分类号： C25D3/565

摘要： A zincate type zinc alloy electroplating bath which comprises a Zn compound, an alkali hydroxide, a salt of Fe(II, III) or Ni(II), a chelating agent for dissolving said salt of Fe(II, III) or Ni(II) and brightening agents. The chelating agent is selected from the group consisting of a commercially available chelating agent and a reaction product of a mixture of one or more kinds of aliphatic amine with epihalohydrin. The brightening agents contain alkylated polyalkylene polyamine in which some of the basic nitrogen atoms of polyalkylene polyamine are alkylated by alkyl groups of C.sub.1 to C.sub.3, and one or more compounds selected from the group consisting of reaction products of imidazole or its derivative with epihalohydrin and reaction products of imidazole or its derivative with epihalohydrin in the presence of aliphatic amine.

摘要翻译： 一种锌酸盐型锌合金电镀浴，其包含Zn化合物，碱金属氢氧化物，Fe（II，III）或Ni（II）的盐，用于溶解Fe（II，III）或Ni（II）的盐的螯合剂 ）和增白剂。 螯合剂选自市售螯合剂和一种或多种脂族胺与表卤代醇的混合物的反应产物。 增亮剂含有烷基化多亚烷基多胺，其中一些多亚烷基多胺的碱性氮原子被C1至C3的烷基烷基化，并且一种或多种选自咪唑或其衍生物与表卤代醇的反应产物和反应 在脂族胺存在下咪唑或其衍生物与表卤代醇的产物。

公开(公告)号：US5369507A

公开(公告)日：1994-11-29

申请号：US932319

申请日：1992-08-19

申请人： Kazuyoshi Tanaka ,  Koji Washio ,  Yoshizumi Yasuda

发明人： Kazuyoshi Tanaka ,  Koji Washio ,  Yoshizumi Yasuda

IPC分类号： G06K9/20 ,  G06T7/40 ,  H04N1/40

CPC分类号： H04N1/40062

摘要： An image processing apparatus and method selects a processing mode to be one of a character image processing mode and a picture image processing mode in accordance with an image texture in an original image. The apparatus and method uses a scanner which pre-scans an original image to obtain sampled image data, a judging means discriminates between a character image area and a picture image area in an area of the original image based on an analysis of the sampled image data. The apparatus and method the original image processing mode from a character image processing mode to a picture image processing mode and vice versa based on the discrimination by the judging means. During discrimination, the judging means finds blank-stripe zones in an area of the original image based on an analysis of the sampled image data, and divides the area into image blocks by splitting the area with the blank-stripe zones therein and ascertains whether the original image in each block is a character image or a picture image based on a ratio between the length and the width of each image block.

摘要翻译： 图像处理装置和方法根据原始图像中的图像纹理将处理模式选择为字符图像处理模式和图像图像处理模式之一。 该装置和方法使用预扫描原始图像以获得采样图像数据的扫描仪，判断装置基于对采样图像数据的分析来区分原始图像区域中的字符图像区域和图像图像区域 。 该装置和方法基于判断装置的鉴别，将原始图像处理模式从字符图像处理模式转换到图像图像处理模式，反之亦然。 在判别期间，判断装置基于对采样图像数据的分析，在原始图像的区域中找到空白条纹区域，并通过将其中的空白条带区域分割成图像块，并确定是否 每个块中的原始图像是基于每个图像块的长度和宽度之间的比率的字符图像或图像图像。