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EP0397428A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Image processing apparatus

Assignee: Canon Inc
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Filing: 1990-05-04
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Granted: —
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Expires: 2010-05-04
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Abstract

Abstract An image processing apparatus includes a synthesizing unit for synthesizing a color image and a binary mage, a processing unit for performing multigradation processing of the color image and high-resolution processing of the binary image, and a control unit for controlling the processing unit to preferentially execute the high-resolution processing for an area where the color and binary images overlap each other.

Inventors

  • 👤 Yoshinori C/O Canon Kabushiki Kaisha Ikeda
  • 👤 Hiroyuki C/O Canon Kabushiki Kaisha Ichikawa
  • 👤 Mitsuru C/O Canon Kabushiki Kaisha Kurita
  • 👤 Yasumichi C/O Canon Kabushiki Kaisha Suzuki
  • 👤 Toshiyuki C/O Canon Kabushiki Kaisha Kitamura

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 18:47
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/40; H; H04; H04N; H04N1/00; H04N1/387; H04N1/3871; H04N1/3872; H04N1/3873; H04N1/40; H04N1/40062; H04N1/40093; H04N1/46; H04N1/56; H04N1/60; H04N1/6072

Claims Analysis

Total Claims: 28
Claim 1
Independent Claim 62 words
An image processing apparatus comprising: a) synthesizing means for synthesizing a color image and a binary image; b) processing means for performing multigradation processing of said color image, and high-resolution processing of said binary image; and c) control means for controlling said processing means to preferentially execute the high-resolution processing for an area where said color and binary images overlap each other.
Claim 2
Dependent Claim 62 words
An image processing apparatus comprising: a) synthesizing means for synthesizing a color image and a binary image; b) processing means for performing multigradation processing of said color image, and high-resolution processing of said binary image; and c) control means for controlling said processing means to preferentially execute the high-resolution processing for an area where said color and binary images overlap each other.
Claim 3
Dependent Claim 15 words
An apparatus according to claim 1, further comprising input means for inputting said color image.
Claim 4
Dependent Claim 26 words
An apparatus according to claim 2, wherein said input means comprises conversion means for scanning an original and converting an original image into said color image.
Claim 5
Dependent Claim 15 words
An apparatus according to claim 2, further comprising storage means for storing said binary image.
Claim 6
Dependent Claim 34 words
An apparatus according to claim 4, further comprising binarization means for binarizing the color image input by said input means, and wherein said storage means stores the color image binarized by said binarization means.
Claim 7
Dependent Claim 35 words
An apparatus according to claim 5, wherein said synthesizing means reads out the binary image from said storage means in synchronism with an input of the color image by said input means, thereby executing synthesis.
Claim 8
Dependent Claim 24 words
An apparatus according to claim 1, further comprising image forming means for forming an image in accordance with an output from said processing means.
Claim 9
Dependent Claim 33 words
An apparatus according to claim 7, wherein said processing means causes said image forming means to increase a printing density of said binary image to be higher than that of said color image.
Claim 10
Dependent Claim 105 words
An image processing apparatus comprising: a) discrimination means for discriminating a character area on the basis of first image data; b) control signal generating means for generating a signal for controlling processing of the character area on the basis of an output from said discrimination means; c) area designation means for designating a specific area on the first image; d) synthesizing means for synthesizing a second image different from the first image on the designated area based on an output from said area designation means; and e) control means for disabling the signal for controlling the processing of the character area in the synthesized area.
Claim 11
Dependent Claim 105 words
An image processing apparatus comprising: a) discrimination means for discriminating a character area on the basis of first image data; b) control signal generating means for generating a signal for controlling processing of the character area on the basis of an output from said discrimination means; c) area designation means for designating a specific area on the first image; d) synthesizing means for synthesizing a second image different from the first image on the designated area based on an output from said area designation means; and e) control means for disabling the signal for controlling the processing of the character area in the synthesized area.
Claim 12
Dependent Claim 27 words
An apparatus according to claim 9, wherein said control signal is a signal for performing high-resolution image processing of the character area discriminated by said discrimination means.
Claim 13
Dependent Claim 16 words
An apparatus according to claim 9, further comprising input means for inputting said first image data.
Claim 14
Dependent Claim 15 words
An apparatus according to claim 11, wherein said input means comprises a CCD line sensor.
Claim 15
Dependent Claim 20 words
An apparatus according to claim 9, wherein the specific area designated by said area designation means is a non-rectangular area.
Claim 16
Dependent Claim 15 words
An apparatus according to claim 9, wherein said first and second images are color images.
Claim 17
Dependent Claim 20 words
An apparatus according to claim 9, wherein said control means controls not to perform high-resolution processing for said character area.
Claim 18
Dependent Claim 77 words
An image processing apparatus comprising: a) process means for performing an image process operation of a specific area of input image data; b) identification means for identifying a character area in the input image data; c) first control means for controlling processing of the character area on the basis of an output signal from said identification means; and d) second control means for controlling the output signal from said identification means with respect to the specific area.
Claim 19
Dependent Claim 77 words
An image processing apparatus comprising: a) process means for performing an image process operation of a specific area of input image data; b) identification means for identifying a character area in the input image data; c) first control means for controlling processing of the character area on the basis of an output signal from said identification means; and d) second control means for controlling the output signal from said identification means with respect to the specific area.
Claim 20
Dependent Claim 15 words
An apparatus according to claim 16, further comprising designation means for designating said specific area.
Claim 21
Dependent Claim 14 words
An apparatus according to claim 17, wherein said specific area is a non-rectangular area.
Claim 22
Dependent Claim 26 words
An apparatus according to claim 16, wherein said process means performs at least one of zoom processing, inclination processing, and taper processing for said specific area.
Claim 23
Dependent Claim 19 words
An apparatus according to claim 16, wherein the output signal from said identification means is a resolution switching signal.
Claim 24
Dependent Claim 39 words
An apparatus according to claim 16, wherein said second control means controls the output signal from said identification means with respect to said specific area in accordance with a kind of image process operation executed by said process means.
Claim 25
Dependent Claim 44 words
Image processing apparatus for outputting a multi-colour image and a monochrome image overlapping with each other, the said images being processed in different manners and the processing for the monochrome image being carried out preferentially for the area of overlap between the said images.
Claim 26
Dependent Claim 44 words
Image processing apparatus for outputting a multi-colour image and a monochrome image overlapping with each other, the said images being processed in different manners and the processing for the monochrome image being carried out preferentially for the area of overlap between the said images.
Claim 27
Dependent Claim 71 words
Image processing apparatus for processing data representing an image, in which a first operation is carried out to identify an area of the image comprising characters, and a second operation is carried out to process the area comprising characters in a predetermined manner, and in which a portion of the image area may be designated and at least one of the first and second operations is inhibited for the designated portion.
Claim 28
Dependent Claim 71 words
Image processing apparatus for processing data representing an image, in which a first operation is carried out to identify an area of the image comprising characters, and a second operation is carried out to process the area comprising characters in a predetermined manner, and in which a portion of the image area may be designated and at least one of the first and second operations is inhibited for the designated portion.

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