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公开(公告)号：DE3752070T2
公开(公告)日：1997-11-06
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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公开(公告)号：DE69029821D1
公开(公告)日：1997-03-13
申请号：DE69029821
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：DE69028345T2
公开(公告)日：1997-01-23
申请号：DE69028345
申请日：1990-04-17
Applicant: CANON KK
Inventor： KURITA MITSURU , IKEDA YOSHINORI
Abstract: An image processing apparatus, comprising process means for processing an input image; detection means for detecting an isolated point in the input image; and control means for controlling the image processing by the process means according to a detection of the isolated point by the detection means, thereby eliminating a noise conventionally involved in a color conversion to red of an image contour.
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公开(公告)号：DE3854851T2
公开(公告)日：1996-10-17
申请号：DE3854851
申请日：1988-08-10
Applicant: CANON KK
Inventor： KADOWAKI TOSHIHIRO , OHNISHI TETSUYA , IKEDA YOSHINORI
Abstract: A color image processing apparatus for converting a predetermined color in color image data into data of desired characteristic extracts density information and hue information with respect to the color image data. Density information and hue information in respect to a predetermined color are set. Judgement is conducted as to whether a first difference between the density information of the color image data and the density information of the predetermined color falls within a first predetermined range and also as to whether a second difference between the hue information of the color image data and the hue information of the predetermined color falls within a second predetermined range. The color image data is converted into the predetermined color on condition that the first and second differences fall within the first and second predetermined ranges, respectively.
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公开(公告)号：DE68927080D1
公开(公告)日：1996-10-10
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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Patent Agency Ranking
公开(公告)号：CA1337798C
公开(公告)日：1995-12-26
申请号：CA616574
申请日：1993-02-19
Applicant: CANON KK
Inventor： SAKAI MASANORI , HORII HIROYUKI , KOMINE TAKAYUKI , SUZUKI YASUMICHI , IKEDA YOSHINORI , HONMA TOSHIO
Abstract: There is disclosed an image processing apparatus capable of reading image and synthesizing it with another standardized image signal supplied from outside and stored in a memory provided in the apparatus. When an error occurs in the reproduction means, further storage in the image memory is inhibited in response to an instruction to start image reproduction until a manual confirmation is provided. This enables an operator to determine whether reproduction should be restarted after clearance of an error condition.
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公开(公告)号：DE3751050T2
公开(公告)日：1995-06-22
申请号：DE3751050
申请日：1987-11-13
Applicant: CANON KK
Inventor： SUZUKI YASUMICHI , IKEDA YOSHINORI , KATOH KOICHI , OHNISHI TETSUYA , KADOWAKI TOSHIHIRO NO KAKINOKI , 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：DE3751050D1
公开(公告)日：1995-03-23
申请号：DE3751050
申请日：1987-11-13
Applicant: CANON KK
Inventor： SUZUKI YASUMICHI , IKEDA YOSHINORI , KATOH KOICHI , OHNISHI TETSUYA , KADOWAKI TOSHIHIRO NO KAKINOKI , 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：DE3689930D1
公开(公告)日：1994-07-28
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：DE3650773T2
公开(公告)日：2002-12-05
申请号：DE3650773
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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