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公开(公告)号：EP0520818B1
公开(公告)日：1997-12-29
申请号：EP92305910
申请日：1992-06-26
Applicant: CANON KK
Inventor： SUZUKI YASUMICHI , IKEDA YOSHINORI , TANIO SATOSHI , TANABE RITSUSHI
CPC classification number: G06K15/00 , G06K2215/0011 , G06K2215/0065 , G06K2215/0094 , H04N1/46
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公开(公告)号：DE69133449D1
公开(公告)日：2005-04-21
申请号：DE69133449
申请日：1991-01-16
Applicant: CANON KK
Inventor： USAMI AKIHIRO , MOCHIDA YOSHINORI , YOSHIZAWA ATSUTOMO , IKEDA YOSHINORI , KEMMOCHI KAZUHISA , NAGASE YUKIO , ARIMOTO SHINOBU , YAMADA MASANORI , SUZUKI HAJIME , KATO KATSUHITO
IPC: H04N1/52
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公开(公告)号：DE3650768D1
公开(公告)日：2002-03-21
申请号：DE3650768
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：DE3650722T2
公开(公告)日：1999-12-09
申请号：DE3650722
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：DE3752252D1
公开(公告)日：1999-03-25
申请号：DE3752252
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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Patent Agency Ranking
公开(公告)号：DE68928928D1
公开(公告)日：1999-03-18
申请号：DE68928928
申请日：1989-06-20
Applicant: CANON KK
Inventor： SHIMIZU MASATOMO , IKEDA YOSHINORI , OHNISHI TETSUYA
Abstract: The appts. processes a video colour image signal, e.g. derived from a colour document reader, and forms a visual image on an image forming, pref. electrophotography device such as a laser printer, corresp. to the processed signal. The resolution of the image can be changed during its formation. Processing circuitry is included to discriminate a character portion, pref. a black character portion, of an object colour image and change the resolution according to the results of the discrimination. Pref. the resolution is controlled to be higher when a black character portion is discriminated.
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公开(公告)号：DE3752193T2
公开(公告)日：1998-11-12
申请号：DE3752193
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：ES2110950T3
公开(公告)日：1998-03-01
申请号：ES89311742
申请日：1989-11-14
Applicant: CANON KK
Inventor： KURITA MITSURU , IKEDA YOSHINORI , SUZUKI YASUMICHI , KATO KOICHI , ICHIKAWA HIROYUKI , KITAMURA TOSHIYUKI
Abstract: There is provided an image processing apparatus for modulating a concentration of input image data, comprising: an inputting device to input image data; an RAM to store first image data input by the inputtng device; a processing unit to execute a modulating process to at least one area such as a non-rectangular area in second image data input by the inputting device by using the first image data stored in the RAM; and a detector to detect a predetermined color of the second image data. The area is specified by the color detected by the detector. The inputting device includes a CCD for reading an original and generating RGB color component signals. With this apparatus, a texture process is executed to at least one non-rectangular area and the result can be output in a real-time manner.
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公开(公告)号：DE68928557D1
公开(公告)日：1998-02-26
申请号：DE68928557
申请日：1989-11-14
Applicant: CANON KK
Inventor： KURITA MITSURU , IKEDA YOSHINORI , SUZUKI YASUMICHI , KATO KOICHI , ICHIKAWA HIROYUKI , KITAMURA TOSHIYUKI , KADOWAKI TOSHIHIRO
Abstract: There is provided an image processing apparatus for modulating a concentration of input image data, comprising: an inputting device to input image data; an RAM to store first image data input by the inputtng device; a processing unit to execute a modulating process to at least one area such as a non-rectangular area in second image data input by the inputting device by using the first image data stored in the RAM; and a detector to detect a predetermined color of the second image data. The area is specified by the color detected by the detector. The inputting device includes a CCD for reading an original and generating RGB color component signals. With this apparatus, a texture process is executed to at least one non-rectangular area and the result can be output in a real-time manner.
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公开(公告)号：DE3752070D1
公开(公告)日：1997-07-03
申请号：DE3752070
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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