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公开(公告)号：DE69030463D1
公开(公告)日：1997-05-22
申请号：DE69030463
申请日：1990-05-04
Applicant: CANON KK
Inventor： IKEDA YOSHINORI , ICHIKAWA HIROYUKI , KURITA MITSURU , SUZUKI YASUMICHI , KITAMURA TOSHIYUKI , KATO KOICHI
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公开(公告)号：DE69030280D1
公开(公告)日：1997-04-30
申请号：DE69030280
申请日：1990-05-04
Applicant: CANON KK
Inventor： IKEDA YOSHINORI , ICHIKAWA HIROYUKI , KURITA MITSURU , SUZUKI YASUMICHI , KITAMURA TOSHIYUKI
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公开(公告)号：DE68927080T2
公开(公告)日：1997-03-20
申请号：DE68927080
申请日：1989-06-07
Applicant: CANON KK
Inventor： KURITA MITSURU , IKEDA YOSHINORI , SUZUKI YASUMICHI , KATOH KOICHI , ICHIKAWA HIROYUKI
Abstract: This invention provides an image processing apparatus provided with an outline extracting section for extracting an outline of an input image and a color converting section for converting the color of the outline extracted into a predetermined color. This apparatus is therefore capable of extracting the outline of an input image, applying color conversion to the outline extracted, and emphasizing a pattern such as a character, a graphic pattern and the like. The apparatus is further provided with a converting-color designating section for designating a converting color to be applied to the outline, a color detecting section for detecting a portion having a predetermined color in the input image, and a region designating section for designating a predetermined region in the input image. Accordingly, the outline alone can be independently processed so that an outlined character, a shaded character or the like can be formed.
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公开(公告)号：DE3486434T2
公开(公告)日：1996-12-19
申请号：DE3486434
申请日：1984-03-07
Applicant: CANON KK
Inventor： IKEDA YOSHINORI
Abstract: An image processing apparatus has a character code buffer for receiving decoded character signal and generating data presenting a designated character image portion in response a character read address signal, a character generator for converting the readout data to dot data, a character image memory for storing the dot data in a memory area in response to a character write address signal, an image buffer memory for receiving decoded image data and generating data representing a designated half tone image region in response to a halftone read address signal, processing circuit blocks for performing a series of predetermined operations for the readout data, and a half tone image memory for storing the processed data in response to a halftone write address signal.
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公开(公告)号：DE3486434D1
公开(公告)日：1996-07-18
申请号：DE3486434
申请日：1984-03-07
Applicant: CANON KK
Inventor： IKEDA YOSHINORI
Abstract: An image processing apparatus has a character code buffer for receiving decoded character signal and generating data presenting a designated character image portion in response a character read address signal, a character generator for converting the readout data to dot data, a character image memory for storing the dot data in a memory area in response to a character write address signal, an image buffer memory for receiving decoded image data and generating data representing a designated half tone image region in response to a halftone read address signal, processing circuit blocks for performing a series of predetermined operations for the readout data, and a half tone image memory for storing the processed data in response to a halftone write address signal.
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Patent Agency Ranking
公开(公告)号：CA1338342C
公开(公告)日：1996-05-21
申请号：CA602072
申请日：1989-06-07
Applicant: CANON KK
Inventor： KURITA MITSURU , IKEDA YOSHINORI , SUZUKI YASUMICHI , KATOH KOICHI , ICHIKAWA HIROYUKI
Abstract: This invention provides an image processing apparatus provided with an outline extracting section for extracting an outline of an input image and a color converting section for converting the color of the outline extracted into a predetermined color. This apparatus is therefore capable of extracting the outline of an input image, applying color conversion to the outline extracted, and emphasizing a pattern such as a character, a graphic pattern and the like. The apparatus is further provided with a converting-color designating section for designating a converting color to be applied to the outline, a color detecting section for detecting a portion having a predetermined color in the input image, and a region designating section for designating a predetermined region in the input image. Accordingly, the outline alone can be independently processed so that an outlined character, a shaded character or the like can be formed.
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公开(公告)号：DE3750627T2
公开(公告)日：1995-03-09
申请号：DE3750627
申请日：1987-11-13
Applicant: CANON KK
Inventor： OUTA KENICHI , SUZUKI YASUMICHI , IKEDA YOSHINORI
Abstract: A color film reading apparatus of this invention has holding means for holding a color negative film therein; illuminating means for projecting illumination light onto the color negative film; reading means for reading image data from the color negative film; shading correcting means for performing shading correction; and controlling means for controlling the reading means to cause the reading means to read data relative to an unexposed portion of the color negative film to thereby obtain shading correction data for the shading correcting means. The apparatus is capable of generating high-gradation color signals from either of color negative and positive films. This invention further provides an image forming apparatus capable of producing a high-gradation image from either of a film-type original document or a reflection-type original document.
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公开(公告)号：DE3689930T2
公开(公告)日：1994-11-17
申请号：DE3689930
申请日：1986-11-17
Applicant: CANON KK
Inventor： HONMA TOSHIO , IKEDA YOSHINORI , SUZUKI YASUMICHI
Abstract: An image processing apparatus comprising: supply means for supplying an image signal; a first processing circuit for combining a first period pattern signal with said image signal supplied by said supply means to output a first pulse-width modulation image signal; a second processing circuit for combining a second period pattern signal with said image signal supplied by said supply means to output a second pulse-width modulation image signal, a second period of said second period pattern signal being different from a first period of said first-period pattern signal; and selection means for selecting one of said first and second processing circuits.
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公开(公告)号：CA1281363C
公开(公告)日：1991-03-12
申请号：CA551841
申请日：1987-11-13
Applicant: CANON KK
Inventor： SUZUKI YASUMICHI , IKEDA YOSHINORI , KATOH KOICHI , OHNISHI TETSUYA , KADOWAKI TOSHIHIRO , HONMA TOSHIO
Abstract: A color image processing apparatus such as a color copying machine has a color appointing device for enabling an operator to appoint any desired color involved in an original image, a color range changing device for manually or automatically changing the size of range of the colors which can be regarded as being the same as the predetermined color, a target color appointing for appointing a color to which the predetermined color is to be converted, and a color image forming device such as a laser beam printer for forming a color image with the predetermined color and colors in the color range converted into the target color.
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公开(公告)号：GB2141001B
公开(公告)日：1987-06-03
申请号：GB8405861
申请日：1984-03-06
Applicant: CANON KK
Inventor： YOSHIDA TADASHI , HAYASHI KIMIYOSHI , ABE SHUNICHI , MATSUOKA NOBUO , IKEDA YOSHINORI , AKIYAMA MITSUO , MITA YOSHINOBU
Abstract: An image processing apparatus receives color data and includes a masking processing circuit for modifying the colors represented by the color data by processing each of the different color data received. The colors are modified according to other color data associated with each of the colors represented by the color data. The masking processing circuit includes a first memory for storing data representing each color and a second memory for storing data from the data derived after masking processing the data stored in the first memory. The color data and the other color data are used as addresses in the first and second memory. The number of bits of each color data used as an address for each respective color is larger than the number of bits for each of the other color data received at that portion of the memory.
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