US5249242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for enhancing raster pixel data
Assignee: Adobe Inc
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Filing: 1991-12-23
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Granted: 1993-09-28
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Expires: 2011-12-23
Abstract
Abstract Briefly, the invention provides a method of enhancing pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems. The method commences by applying a window to a portion of the raster pixel data from the raster images to define a block of raster pixel data having a predetermined area. The pattern of the block of raster data within the window is then compared with a plurality of predetermined patterns representing morphological artifacts. A determination is made from the comparison whether a substantial match exists between the block of raster data within the window and one or more of the plurality of predetermined patterns. In the event of a match the block of raster data is modified to provide an enhanced block of raster pixel data free of said morphological artifacts. Finally, the window is applied to a different block of raster data and the process is repeated until all of the raster data is free from the undesired morphological artifacts.
Inventors
- 👤 William J. Hanson
- 👤 Richard I. Love
- 👤 R. Daniel Putman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:15
CPC Classifications
G; G06; G06T; G06T5/00; G06T5/20; G06K; G06K15/00; G06K15/02; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; G06K2215/00; G06K2215/0002; G06K2215/004; G06K2215/006; G06K2215/0062; G06K2215/0071
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
164 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and applying said window to a different block of raster pixel data and repeating the process.
Claim 2
Independent Claim
164 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and applying said window to a different block of raster pixel data and repeating the process.
Claim 3
Independent Claim
164 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and moving said window across the pixel map of said raster image and repeating the process.
Claim 4
Independent Claim
164 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and moving said window across the pixel map of said raster image and repeating the process.
Claim 5
Independent Claim
163 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and moving said window down the page in raster line sequence and repeating the process.
Claim 6
Independent Claim
163 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and moving said window down the page in raster line sequence and repeating the process.
Claim 7
Independent Claim
187 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area located within a predetermined band of raster scan lines which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; moving said window across the pixel map of said raster image and repeating the process; and moving said window down the page in raster line sequence and repeating the process.
Claim 8
Independent Claim
187 words
A method of enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area located within a predetermined band of raster scan lines which may contain morphological artifacts; comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; in the event of a match, modifying at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; moving said window across the pixel map of said raster image and repeating the process; and moving said window down the page in raster line sequence and repeating the process.
Claim 9
Dependent Claim
173 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for applying said window to a different block of raster pixel data and repeating the process.
Claim 10
Dependent Claim
173 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for applying said window to a different block of raster pixel data and repeating the process.
Claim 11
Dependent Claim
173 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for moving said window across the pixel map of said raster image and repeating the process.
Claim 12
Dependent Claim
173 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for moving said window across the pixel map of said raster image and repeating the process.
Claim 13
Dependent Claim
172 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for moving said window down the page in raster line sequence and repeating the process.
Claim 14
Dependent Claim
172 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for moving said window down the page in raster line sequence and repeating the process.
Claim 15
Dependent Claim
199 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area located within a predetermined band of raster scan lines which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for moving said window across the pixel map of said raster image and repeating the process; and means for moving said window down the page in raster line sequence and repeating the process.
Claim 16
Dependent Claim
199 words
Apparatus for enhancing raster pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems, comprising: means for applying a window to a portion of said raster pixel data from said raster image to define a block of said raster pixel data having a predetermined area located within a predetermined band of raster scan lines which may contain morphological artifacts; means for comparing the pattern of said raster data within said window with a plurality of predetermined patterns representing morphological artifacts; means for determining from said comparison whether a substantial match exists between said block of raster pixel data within said window and one or more of said plurality of predetermined patterns representing morphological artifacts; means for modifying, in the event of a match, at least a portion of said raster pixel data to provide an enhanced block of raster pixel data with improved appearance which de-emphasizes said morphological artifacts; and means for moving said window across the pixel map of said raster image and repeating the process; and means for moving said window down the page in raster line sequence and repeating the process.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1996-09-27 | 1997-03-29 | 1997-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-27 | 2001-03-29 | 2001-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-27 | 2005-03-29 | 2005-09-28 | $7700.00 | Window Closed / Lapsed |