公开(公告)号：US06370278B1

公开(公告)日：2002-04-09

申请号：US09233102

申请日：1999-01-19

申请人： Shinichi Waguri

发明人： Shinichi Waguri

IPC分类号： G06T500

CPC分类号： H04N1/40012

摘要： A color-to-monochrome image conversion technique is disclosed. After the color image is converted to a monochrome input image and a plurality of primary-color input images, boundary information is extracted from the plurality of primary-color input images. The boundary information discriminates between different colors with the same lightness in the color image. Thereafter, the boundary information is superimposed as a binary image on the monochrome input image to produce the monochrome image. Therefore, a boundary between different colors with the same lightness can be easily imagined and be visibly displayed.

摘要翻译： 公开了一种彩色到单色图像转换技术。 在将彩色图像转换为单色输入图像和多个原色输入图像之后，从多个原色输入图像中提取出边界信息。 边界信息在彩色图像中具有相同的亮度的不同颜色之间进行区别。 此后，边界信息作为二进制图像叠加在单色输入图像上以产生单色图像。 因此，可以容易地想到具有相同亮度的不同颜色之间的边界并且可视地显示。

公开(公告)号：US06347156B1

公开(公告)日：2002-02-12

申请号：US09216712

申请日：1998-12-21

申请人： Hiroshi Kamada ,  Katsuhito Fujimoto

发明人： Hiroshi Kamada ,  Katsuhito Fujimoto

IPC分类号： G06K900

CPC分类号： H04N1/40068 ,  G06K9/38 ,  G06K2209/01 ,  H04N1/40012

摘要： A color image input from a document image inputting unit is converted into a gray-scale image by a brightness image extracting unit. The gray-scale image is then converted into an image having a higher resolution according to the resolution of the original gray-scale image. When this conversion is performed, subpixels are generated between the original pixels, and the values of the subpixels are obtained with an interpolation method. Furthermore, a threshold value for a binarization process is generated by using an original pixel value and a subpixel value. The characters included in the binarized image are recognized by a binary image recognizing unit, and a recognition result is output from a recognition result outputting unit.

摘要翻译： 从文件图像输入单元输入的彩色图像由亮度图像提取单元转换成灰度图像。 然后根据原始灰度图像的分辨率将灰度图像转换成具有更高分辨率的图像。 当执行该转换时，在原始像素之间产生子像素，并且通过插值方法获得子像素的值。 此外，通过使用原始像素值和子像素值来生成二值化处理的阈值。 由二进制图像识别单元识别二值化图像中包含的字符，并从识别结果输出单元输出识别结果。

公开(公告)号：US5973802A

公开(公告)日：1999-10-26

申请号：US611754

申请日：1996-03-06

申请人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Kazuhiro Ishiguro

发明人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Kazuhiro Ishiguro

IPC分类号： G03G15/01 ,  H04N1/04 ,  H04N1/40 ,  H04N1/46 ,  H04N1/60 ,  G03F3/08

CPC分类号： H04N1/48 ,  H04N1/40012

摘要： When a monochromatic image is reproduced, a user can select desired mixing coefficients of red, green and blue in order to control gradation data for the reproduction of a monochromatic image as well as a monochromatic reproduction color. When a document is automatically determined not to be a color document, the mixing coefficients of red, green and blue are changed according to the type of the document. If a monochromatic copy mode is selected, the mixing coefficients can be set manually. Preferably, in order to help a user to select mixing coefficients, a plurality of images of monochromatic colors of various mixing coefficients of red, green and blue can be printed on a single sheet of paper.

摘要翻译： 当再现单色图像时，用户可以选择期望的红色，绿色和蓝色的混合系数，以便控制用于再现单色图像以及单色再现颜色的灰度数据。 当文档被自动确定为不是彩色文档时，红色，绿色和蓝色的混合系数根据文档的类型而改变。 如果选择单色复印模式，则可以手动设置混合系数。 优选地，为了帮助用户选择混合系数，可以在单张纸上打印出各种红色，绿色和蓝色混合系数的单色的多个图像。

公开(公告)号：US5845056A

公开(公告)日：1998-12-01

申请号：US737287

申请日：1997-01-09

申请人： Thomas Kohler ,  Klaus Lang ,  Andreas Netthorn

发明人： Thomas Kohler ,  Klaus Lang ,  Andreas Netthorn

IPC分类号： B41J2/525 ,  G03F3/08 ,  G03F3/10 ,  H04N1/40 ,  H04N1/52 ,  H04N1/60 ,  H04N1/46

CPC分类号： H04N1/6011 ,  H04N1/40012

摘要： A method and apparatus are provided for producing a rastered gray composite proof in which the color values of the chromatic printing inks "cyan", "magenta" and "yellow" are united to brightness-equivalent gray scale values for simple advance monitoring of a color printing. The gray scale values to be printed on the gray composite proof are corrected compared to the gray scale values of the chromatic printing inks for the color printing represented by the color separation values, being corrected to different percentage parts that respectively correspond to the subjectively sensed brightness impression of the chromatic printing inks relative to "black". The color separation values of the chromatic printing inks are converted into individual bit maps by different raster functions such that the recorded pixels of the chromatic printing inks lie next to one another on the recording material. The individual bit maps of the chromatic printing inks are united to form an overall bit map by an OR operation. The control bits of the overall bit map control a black-and-white printer that prints the gray composite proof on the recording material pixel-by-pixel, whereby the control bits of the overall bit map decide whether the pixel is printed as raster points or parts of the raster points or is not printed.

摘要翻译： PCT No.PCT / DE96 / 00423 Sec。 371日期1997年1月9日 102（e）日期1997年1月9日PCT 1996年3月7日PCT公布。 第WO96 / 27976号公报 日期1996年9月12日提供了一种用于制造斜面灰色复合材料证明的方法和装置，其中彩色印刷油墨“青色”，“品红色”和“黄色”的颜色值与亮度等效灰度值相结合以简单 提前监控彩色打印。 相对于由颜色分离值表示的彩色打印的彩色印刷油墨的灰度值，校正灰度复合图案上要打印的灰度值，其被校正到分别对应于主观感光亮度的不同百分比部分 彩色印刷油墨相对于“黑色”的印象。 通过不同的光栅功能将彩色印刷油墨的色分离值转换为单独的位图，使得彩色印刷油墨的记录像素在记录材料上彼此相邻。 彩色印刷油墨的各个位图被合并，以通过OR操作形成整体位图。 整个位图的控制位控制黑白打印机，逐个像素地在记录材料上打印灰色复合证明，由此整个位图的控制位决定像素是否被打印为光栅点 或部分光栅点或不打印。

公开(公告)号：US5552894A

公开(公告)日：1996-09-03

申请号：US971064

申请日：1992-11-03

申请人： Yoshinobu Aiba

发明人： Yoshinobu Aiba

IPC分类号： H04B10/00 ,  G06T1/00 ,  H04B10/071 ,  H04N1/387 ,  H04N1/40 ,  H04N1/46 ,  H04N1/60 ,  G06K9/40 ,  G06K9/42

CPC分类号： H04N1/40012

摘要： An image processing apparatus includes an input unit for inputting image information, a setting unit for setting a mode associated with a resolution, a detection unit for detecting a specific image in the image information input from the input unit, a processing unit for converting the specific image in the image information detected by the detection unit into a pattern image having a predetermined resolution, and an output unit for outputting image information from the processing unit. The processing unit changes the resolution of the pattern image according to the mode set by the setting unit.

摘要翻译： 一种图像处理装置，包括用于输入图像信息的输入单元，用于设置与分辨率相关联的模式的设置单元，用于检测从输入单元输入的图像信息中的特定图像的检测单元， 将由检测单元检测到的图像信息中的图像转换成具有预定分辨率的图案图像，以及输出单元，用于从处理单元输出图像信息。 处理单元根据由设置单元设置的模式改变图案图像的分辨率。

公开(公告)号：US5485288A

公开(公告)日：1996-01-16

申请号：US843725

申请日：1992-02-28

申请人： Masafumi Kamei ,  Yoshiyuki Suzuki ,  Shizuo Hasegawa ,  Hiroyuki Ichikawa ,  Yoshihiro Funamizu ,  Akio Itoh ,  Yoshinori Abe

发明人： Masafumi Kamei ,  Yoshiyuki Suzuki ,  Shizuo Hasegawa ,  Hiroyuki Ichikawa ,  Yoshihiro Funamizu ,  Akio Itoh ,  Yoshinori Abe

IPC分类号： H04N1/40 ,  H04N1/405 ,  H04N1/56 ,  G06T5/00 ,  H04N1/409

CPC分类号： H04N1/40093 ,  H04N1/40012

摘要： An image processing apparatus for converting color images into monochromatic pattern images. The image processing apparatus includes: means for detecting the area of a color image; means for converting a color image into a monochromatic pattern image; and control means for varying such image processing in accordance with the result of detection made by the means for detecting the area. When a thin line is detected in a color area, the method of processing is determined based on the width of the detected thin line. For example, when the width of the thin line is smaller than a predetermined value, the area of such thin line may be outputted as a plain image instead of a pattern image so that it may easily be seen or recognized. The contour of a color area may be made conspicuous by combining a plain image and a pattern image.

摘要翻译： 一种用于将彩色图像转换成单色图案图像的图像处理装置。 图像处理装置包括：用于检测彩色图像的区域的装置; 用于将彩色图像转换为单色图案图像的装置; 以及用于根据用于检测该区域的装置进行的检测结果来改变这种图像处理的控制装置。 当在颜色区域中检测到细线时，基于检测到的细线的宽度来确定处理方法。 例如，当细线的宽度小于预定值时，可以将这种细线的面积作为平面图像而不是图案图像输出，以便容易地看到或识别。 可以通过组合平面图像和图案图像来使颜色区域的轮廓变得显眼。

公开(公告)号：US5408343A

公开(公告)日：1995-04-18

申请号：US283142

申请日：1994-08-01

申请人： Takashi Sugiura ,  Shizuo Hasegawa ,  Hiroyuki Ichikawa ,  Hirohiko Tashiro

发明人： Takashi Sugiura ,  Shizuo Hasegawa ,  Hiroyuki Ichikawa ,  Hirohiko Tashiro

IPC分类号： G03G15/01 ,  G06T1/00 ,  G06T5/00 ,  H04N1/40 ,  H04N1/46 ,  H04N1/60 ,  H04N1/62

CPC分类号： H04N1/62 ,  H04N1/40012

摘要： An image processing apparatus in which a color identifier identifies the color of an input image based on an input color-image signal. A luminance detector detects luminance information in the input color-image signal. An image generator generates a predetermined pattern which is indicative of the color identified by the color identifier. A measurement device measures the luminance distribution of the detected luminance signal which is outside an area in which color is identified by the color identifier. The output density of the input color-image signal is set in accordance with the measured luminance distribution, and an output monochromatic image is produced in which colors of the input image are identified by the predetermined patterns.

摘要翻译： 一种图像处理装置，其中颜色标识符基于输入的彩色图像信号来识别输入图像的颜色。 亮度检测器检测输入彩色图像信号中的亮度信息。 图像生成器生成指示由颜色标识符识别的颜色的预定图案。 测量装置测量检测到的亮度信号的亮度分布，其在通过颜色标识符识别颜色的区域之外。 输入彩色图像信号的输出密度根据测量的亮度分布设定，并且产生输出单色图像，其中通过预定图案识别输入图像的颜色。

公开(公告)号：US20240314418A1

公开(公告)日：2024-09-19

申请号：US18185424

申请日：2023-03-17

申请人： E-CON SYSTEMS INDIA PRIVATE LIMITED

发明人： SENTHILMURUGAN M S ,  KRITHIKA GURUMURTHY

IPC分类号： H04N23/55 ,  G06T5/00 ,  G06V10/74 ,  H04N1/40

CPC分类号： H04N23/55 ,  G06T5/70 ,  G06V10/761 ,  H04N1/40012

摘要： A system for calculating a camera lens offset deviation is provided. The system includes a camera module configured to be enclosed within a translucent filter, a tracing module that traces a field of view in coverage of a camera lens, a threshold module that converts the grayscale image into a binary image, a dilation module that uses a translucent filter positioned in front of the camera lens for noise reduction, a contour module plots the high-intensity pixels in the threshold image, an extraction module extracts an external point of the lens image, a resolution generation module generates a resolution of a camera sensor and plots a reference line, a determination module determines a center of the circle using a fit ellipse, plots a plurality of deviation axis lines and compares them with the reference thereby obtaining the offset deviation, an alert module alerts the user about the lens offset deviation.

公开(公告)号：US12047683B2

公开(公告)日：2024-07-23

申请号：US17510290

申请日：2021-10-25

申请人： TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

发明人： Jingwen Ye ,  Baochang Han ,  Xiao Han

IPC分类号： H04N23/73 ,  G02B21/36 ,  G06T1/00 ,  G06T7/00 ,  G16H30/40 ,  H04N1/40 ,  H04N23/71

CPC分类号： H04N23/73 ,  G02B21/365 ,  G06T1/0007 ,  G06T7/0012 ,  G16H30/40 ,  H04N1/40012 ,  H04N23/71 ,  G06T2207/30004

摘要： This application relates to an image acquisition method and apparatus, a device, and a storage medium, and relates to the field of image processing technologies. The method includes obtaining a first image, the first image being an image acquired by controlling an exposure time of an image acquisition component according to a brightness reference value; obtaining an exposure state of the first image; updating the brightness reference value according to the exposure state of the first image, to obtain an updated brightness reference value; controlling the exposure time of the image acquisition component according to the updated brightness reference value; and acquiring a second image.

公开(公告)号：US12041213B2

公开(公告)日：2024-07-16

申请号：US18146969

申请日：2022-12-27

申请人： CANON KABUSHIKI KAISHA

发明人： Takeshi Shinya

IPC分类号： H04N1/40

CPC分类号： H04N1/40012 ,  H04N2201/0094

摘要： At the time of printing a color page image in monochrome, multi-dimensional color component values of each object included in the color page image are converted into a gray value. Then, in the processing to widen a difference between a first gray value and a second gray value, in a case where a color represented by the first color component value and a color represented by the second color component value do not belong to the same color group, the difference between the first gray value and the second gray value is made larger than that in a case where both the colors belong to the same color group.