Patent US6192152B1 successfully refreshed from Google Patents.
US6192152B1
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US
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Image processing apparatus
Assignee: Canon Inc
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Filing: 1993-05-21
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Granted: 2001-02-20
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Expires: 2013-05-21
Abstract
Abstract An image processing apparatus includes a first detection unit for detecting an edge of an input image on the basis of an input image signal, a second detection unit for detecting a screen portion of the input image on the basis of the input image signal, a processing unit for executing processing of the input image signal according to detection results of the first and second detection units, and a setting unit for setting detection modes of the first and second detection units.
Inventors
- 👤 Masahiro Funada
- 👤 Michio Kawase
- 👤 Shinobu Arimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:20
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/58; G; G06; G06T; G06T11/00; G06T11/60; G06T7/00; G06T7/10; G06T7/12; H04N1/40; H04N1/40062; G06T2207/00; G06T2207/10; G06T2207/10016; G06T2207/30; G06T2207/30108; G06T2207/30144
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
98 words
An image processing apparatus comprising: a) input means for inputting an image signal; b) detection means for detecting a feature of an input image on the basis of the image signal; and c) setting means for setting a detection mode of said detection means, wherein the detection mode includes at least a first detection mode for detecting an edge portion surrounded by a screen portion and a second detection mode for detecting an edge portion surrounded by a halftone portion, and wherein said setting means guides the setting of the first detection mode and the second detection mode.
Claim 2
Dependent Claim
98 words
An image processing apparatus comprising: a) input means for inputting an image signal; b) detection means for detecting a feature of an input image on the basis of the image signal; and c) setting means for setting a detection mode of said detection means, wherein the detection mode includes at least a first detection mode for detecting an edge portion surrounded by a screen portion and a second detection mode for detecting an edge portion surrounded by a halftone portion, and wherein said setting means guides the setting of the first detection mode and the second detection mode.
Claim 3
Dependent Claim
16 words
An apparatus according to claim 1 , wherein the feature is an edge of an image.
Claim 4
Dependent Claim
17 words
An apparatus according to claim 1 , wherein the feature is a screen portion of an image.
Claim 5
Dependent Claim
35 words
An apparatus according to claim 1 , wherein said detection means includes first detection means for detecting an edge of the image according to continuity of a rapid change in density of the image signal.
Claim 6
Dependent Claim
37 words
An apparatus according to claim 4 , wherein said detection means includes second detection means for detecting a screen portion of the image according to a change in density in a specific direction of the image signal.
Claim 7
Dependent Claim
29 words
An apparatus according to claim 5 , further comprising processing means for processing the image signal according to a detection result of said detection means and performing image reproduction.
Claim 8
Dependent Claim
24 words
An apparatus according to claim 6 , wherein said processing means comprises judgement means for judging a black line image portion of the image.
Claim 9
Dependent Claim
22 words
An apparatus according to claim 7 , wherein said processing means reproduces the black line image using only a black recording agent.
Claim 10
Dependent Claim
16 words
An apparatus according to claim 1 , wherein said setting means comprises manual key input means.
Claim 11
Dependent Claim
87 words
An image processing method comprising: a) inputting an image signal; b) detecting a feature of an input image on the basis of the image signal; and c) setting a detection mode in said detecting step, wherein the detection mode includes at least a first detection mode for detecting an edge portion surrounded by a screen portion and a second mode for detecting an edge portion surrounded by a halftone, and wherein said setting step guides the setting of the first detection mode and the second detection mode.
Claim 12
Dependent Claim
87 words
An image processing method comprising: a) inputting an image signal; b) detecting a feature of an input image on the basis of the image signal; and c) setting a detection mode in said detecting step, wherein the detection mode includes at least a first detection mode for detecting an edge portion surrounded by a screen portion and a second mode for detecting an edge portion surrounded by a halftone, and wherein said setting step guides the setting of the first detection mode and the second detection mode.
Claim 13
Dependent Claim
16 words
A method according to claim 10 , wherein the feature is an edge of an image.
Claim 14
Dependent Claim
17 words
A method according to claim 10 , wherein the feature is a screen portion of an image.
Claim 15
Dependent Claim
36 words
A method according to claim 10 , wherein said detecting step includes a first detection step for detecting an edge of the image according to continuity of a rapid change in density of the image signal.
Claim 16
Dependent Claim
38 words
A method according to claim 13 , wherein said detecting step includes a second detection step for detecting a screen portion of the image according to a change in density in a specific direction of the image signal.
Claim 17
Dependent Claim
30 words
A method according to claim 14 , further comprising a processing step for processing the image signal according to a detection result of said detecting step and performing image reproduction.
Claim 18
Dependent Claim
25 words
A method according to claim 15 , wherein said processing step comprises a judgement step for judging a black line image portion of the image.
Claim 19
Dependent Claim
22 words
A method according to claim 16 , wherein said processing step reproduces the black line image using only a black recording agent.
Claim 20
Dependent Claim
20 words
A method according to claim 10 , wherein said setting step comprises a step of using manual key input means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-02-20 | 2004-08-21 | 2005-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-02-20 | 2008-08-21 | 2009-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-02-20 | 2012-08-21 | 2013-02-20 | $7700.00 | Window Closed / Lapsed |