US5126834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color image processing system with hue processing and modification
Assignee: Fujitsu Ltd
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Filing: 1990-02-09
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Granted: 1992-06-30
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Expires: 2010-02-09
Abstract
Abstract A color picture image processing system for effecting hue processing and hue modification based on a derivation of chrominance components. A contour line determination unit determines a contour line in response to picture information and possibly sketch drawing information. A contour line chrominance providing unit determines a plurality of main points on the contour line and determines a chrominance main point vectors for the main points to provide chrominance contour vectors. The system includes a window unit for holding a new window setting resulting from processing a modification, a contour line modification unit for supplying instructions for modification of the contour line determined by the contour line determination unit and a contour line inner range chrominance processing unit for providing chrominance inner range vectors inside a range defined by the contour line. Synthesis processing of chrominances of picture elements constituting an instructed color picture this carried out, based on an information obtained from vectors representing a lamellar and vortex component parts of the chrominance component of the picture information.
Inventors
- 👤 Hajime Enomoto
- 👤 Isao Miyamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:40
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/64
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
182 words
A color picture image processing system for effecting hue processing and hue modification based on a chrominance component of picture information, said system comprising; input means for inputting and outputting picture information; contour line determination means for determining a contour line in response to the picture information from said input means; contour line chrominance providing means for determining, from the contour line determined by said contour line determination means, a plurality of main points on the contour line, and newly determining a chrominance main point vector to each of the main points and newly providing chrominance contour vectors to an entirety of the contour line, based on values of the chrominance main point vectors; modification of the contour line determined by said contour line determination means, based on the chrominance contour vectors of the contour line obtained by said contour line chrominance providing means; and contour line inner range chrominance means for newly providing chrominance inner vectors inside a range defined by the contour line, based on the chrominance vectors of the contour line provided by said contour line chrominance providing means.
Claim 2
Dependent Claim
182 words
A color picture image processing system for effecting hue processing and hue modification based on a chrominance component of picture information, said system comprising; input means for inputting and outputting picture information; contour line determination means for determining a contour line in response to the picture information from said input means; contour line chrominance providing means for determining, from the contour line determined by said contour line determination means, a plurality of main points on the contour line, and newly determining a chrominance main point vector to each of the main points and newly providing chrominance contour vectors to an entirety of the contour line, based on values of the chrominance main point vectors; modification of the contour line determined by said contour line determination means, based on the chrominance contour vectors of the contour line obtained by said contour line chrominance providing means; and contour line inner range chrominance means for newly providing chrominance inner vectors inside a range defined by the contour line, based on the chrominance vectors of the contour line provided by said contour line chrominance providing means.
Claim 3
Dependent Claim
26 words
A system according to claim 1, wherein said contour line determination means determines the contour line in response to the picture information and sketch drawing information.
Claim 4
Dependent Claim
57 words
A system according to claim 2, wherein, when a picture signal is supplied to said contour line determination means as the picture information, said contour line determination means derives a luminance component part and a chrominance component part from the picture signal and extracts E-line data and L-line data as monochrome information from the luminance component part.
Claim 5
Dependent Claim
63 words
A system according to claim 3, wherein, when the picture signal is supplied to said contour line determination means as the picture information, said contour line determination means derives a lamellar component part and a vortex component part from the chrominance component part, and carries out a gradient calculation on the lamellar component part and a rotation calculation on the vortex component part.
Claim 6
Dependent Claim
29 words
A system according to claim 1, wherein said contour line determination means receives sketch information from said input means and extracts a line picture of a sketch drawing therefrom.
Claim 7
Dependent Claim
32 words
A system according to claim 3, further comprising synthesis means for processing at least the monochrome information, the chrominance contour vectors and the chrominance inner vectors to constitute an instructed color picture.
Claim 8
Dependent Claim
25 words
A system according to claim 1, further comprising: window means for holding a resultant window setting from modification processing by said contour line modification means.
Claim 9
Dependent Claim
26 words
A system according to claim 7, wherein said window means enables said contour line modification means to supply instructions for a modification of the contour line.
Claim 10
Dependent Claim
33 words
A system according to claim 1, wherein said contour line determination means determines the contour line in response to sketch drawing information and in response to the picture information from said input means.
Claim 11
Independent Claim
111 words
A method of hue processing in a hue processor, said method comprising the steps of: (a) receiving picture information; (b) determining a contour line based on the picture information received in step (a); (c) determining main points of the contour line determined in step (b); (d) determining chrominance main point vectors to each main point determined in step (c); (e) providing chrominance contour vectors to an entirety of the contour line determined in step (b) by interpolation based on the chrominance main point vectors determined in step (d); (f) providing chrominance inner vectors inside the contour line based on one of the chrominance main point vectors and the chrominance contour vectors.
Claim 12
Independent Claim
111 words
A method of hue processing in a hue processor, said method comprising the steps of: (a) receiving picture information; (b) determining a contour line based on the picture information received in step (a); (c) determining main points of the contour line determined in step (b); (d) determining chrominance main point vectors to each main point determined in step (c); (e) providing chrominance contour vectors to an entirety of the contour line determined in step (b) by interpolation based on the chrominance main point vectors determined in step (d); (f) providing chrominance inner vectors inside the contour line based on one of the chrominance main point vectors and the chrominance contour vectors.
Claim 13
Dependent Claim
35 words
A method according to claim 10, further comprising the steps of: (g) storing a plurality of chrominance contour vectors within a window; and (h) displaying instructions to a user for modification of the contour line.
Claim 14
Dependent Claim
30 words
A method according to claim 10, wherein said determining of the main points in step (c) determines the main points based on a contour line newly identified by a user.
Claim 15
Dependent Claim
52 words
A method according to claim 10, wherein said determining of the main points in step (c) comprises the steps of: (c1) storing a plurality of the chrominance contour vectors; (c2) displaying instructions to a user for modification of the chrominance contour vectors; and (c3) receiving main points representing a modified contour line.
Claim 16
Dependent Claim
22 words
A method according to claim 10, wherein said receiving in step (a) includes receiving a video signal comprising luminance and chrominance parts.
Claim 17
Dependent Claim
46 words
A method according to claim 14, further comprising the steps of (g) performing a gradient operation on a lamellar component of the chrominance part received in step (a); and (h) performing a rotation operation on a vortex component of the chrominance part received in step (a).
Claim 18
Dependent Claim
43 words
A method according to claim 14, further comprising the step of (g) synthesizing a color picture from at least the luminance part received in step (a), the chrominance contour vectors provided in step (e) and the chrominance inner vectors provided in step (f).
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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) | 1995-06-30 | 1995-12-30 | 1996-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-30 | 1999-12-30 | 2000-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-30 | 2003-12-30 | 2004-06-30 | $7700.00 | Window Closed / Lapsed |