US5452372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image processing apparatus
Assignee: Canon Inc
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Filing: 1994-11-22
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Granted: 1995-09-19
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Expires: 2014-11-22
Abstract
Abstract An image processing apparatus for correcting shape errors when a graphic image to which contour line data was given is painted and developed comprises: an input device to input contour line data of image information; a circuit to make a contour line pattern of the image information on the basis of the contour line data; a circuit to make a painted pattern in which the inside of the contour line pattern was painted; a circuit to narrow the painted pattern; and a contour line correcting circuit to obtain the exclusive-OR combination of the narrowed painted pattern and the contour line pattern. The contour line pattern is eliminated from the painted pattern by the narrowing circuit. The contour line correcting circuit has a converter to convert the contour line pattern in correspondence to the drawing direction of the contour line pattern and obtains the exclusive-OR combination of the converted contour line pattern and the painted pattern. This apparatus can prevent a small blank region in an image being painted over and can effect a feature of a contour line.
Inventors
- 👤 Akifumi Shirasaka
- 👤 Kensaku Tanaka
- 👤 Masaki Hamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:54
CPC Classifications
G; G06; G06T; G06T11/00; G06T11/40
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
176 words
An image processing apparatus comprising: a first memory portion; a second memory portion; input means for inputting contour line pixel data of image information; means for making a contour line pattern of the image information on the basis of the contour line pixel data and for storing the contour line,pattern in said first memory portion; means for making a painted pattern in which the inside of the contour line pattern has been painted and for storing the painted pattern in said second memory portion; cutting means for cutting the contour line pattern out of the painted pattern; contour line making means for making a corrected contour line pattern and for storing the corrected contour line pattern in said first memory portion; and means for making a corrected painted pattern of the contour line pixel data input by said input means based on an OR of (i) the painted pattern after the contour line pattern has been cut out by said cutting means and (ii) the corrected contour line pattern made by said contour line making means.
Claim 2
Dependent Claim
176 words
An image processing apparatus comprising: a first memory portion; a second memory portion; input means for inputting contour line pixel data of image information; means for making a contour line pattern of the image information on the basis of the contour line pixel data and for storing the contour line,pattern in said first memory portion; means for making a painted pattern in which the inside of the contour line pattern has been painted and for storing the painted pattern in said second memory portion; cutting means for cutting the contour line pattern out of the painted pattern; contour line making means for making a corrected contour line pattern and for storing the corrected contour line pattern in said first memory portion; and means for making a corrected painted pattern of the contour line pixel data input by said input means based on an OR of (i) the painted pattern after the contour line pattern has been cut out by said cutting means and (ii) the corrected contour line pattern made by said contour line making means.
Claim 3
Dependent Claim
35 words
An apparatus according to claim 1, wherein said contour line making means makes the corrected contour line pattern by utilizing a predetermined mesh-point pattern, and further comprising memory means for storing the predetermined mesh-point pattern.
Claim 4
Dependent Claim
36 words
An apparatus according to claim 1, wherein said contour line making means makes the corrected contour line pattern by utilizing a predetermined mesh-point pattern, which is a pattern obtained by thinning out the contour line pattern.
Claim 5
Dependent Claim
41 words
An apparatus according to claim 1, wherein said contour line making means masks the contour line pattern using a corresponding predetermined pattern in accordance with an angle of inclination of the contour line pattern, thereby obtaining the corrected contour line pattern.
Claim 6
Dependent Claim
118 words
An image processing method comprising the steps of: inputting contour line pixel data of image information; making a contour line pattern of the image information on the basis of the contour line pixel data; storing the contour line pattern; making a painted pattern in which the inside of the contour line pattern has been painted; storing the painted pattern; cutting the contour line pattern out of the painted pattern; making a corrected contour line pattern; storing the corrected contour line pattern; and making a corrected painted pattern of the contour line pixel data, based on an OR of (i) the painted pattern after the contour line pattern has been cut out and (ii) the corrected contour line pattern,
Claim 7
Dependent Claim
118 words
An image processing method comprising the steps of: inputting contour line pixel data of image information; making a contour line pattern of the image information on the basis of the contour line pixel data; storing the contour line pattern; making a painted pattern in which the inside of the contour line pattern has been painted; storing the painted pattern; cutting the contour line pattern out of the painted pattern; making a corrected contour line pattern; storing the corrected contour line pattern; and making a corrected painted pattern of the contour line pixel data, based on an OR of (i) the painted pattern after the contour line pattern has been cut out and (ii) the corrected contour line pattern,
Claim 8
Dependent Claim
32 words
A method according to claim 5, wherein said step of making a corrected contour line pattern utilizes a predetermined mesh-point pattern, and further comprising the step of storing the predetermined mesh-point pattern.
Claim 9
Dependent Claim
33 words
A method according to claim 5, wherein said step of making a corrected contour line pattern utilizes a predetermined mesh-point pattern, which is a pattern obtained by thinning out the contour line pattern.
Claim 10
Dependent Claim
36 words
A method according to claim 5, wherein said step of making a corrected contour line pattern utilizes a predetermined mesh-point pattern, which is used in accordance with an angle of inclination of the contour line pattern.
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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) | 1998-09-18 | 1999-03-20 | 1999-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-18 | 2003-03-20 | 2003-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-18 | 2007-03-20 | 2007-09-19 | $7700.00 | Window Closed / Lapsed |