EP0488534A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Outputting method and apparatus
Assignee: Canon Inc
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Filing: 1991-10-31
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Granted: —
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Expires: 2011-10-31
Abstract
Abstract There are disclosed outputting method and apparatus of a document in which a character area and an image area mixedly exist, wherein the character area and the image area are discriminated and a document is outputted in a manner such that the smoothing process is automatically executed to the character area and the smoothing process is not performed to the image area on the basis of the result of the discrimination in the case where the resolution is changed. Thus, the document can be generated at a high quality by the smoothing process as if the document were generated at an output resolution which is equal to or higher than the present output resolution.
Inventors
- 👤 Naoki c/o Canon Kabushiki Kaisha Ohyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 11:56
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/18; G06K15/1848; G06K15/1852; G06K15/1855; G06K15/1867; G06K15/1872; G06K15/1873; G06K15/1874; G06K2215/00; G06K2215/0002; G06K2215/0062; G06K2215/0071
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
47 words
An outputting method comprising the steps of: discriminating an area in which characters exist and an area in which an image exists; and outputting in a manner such that a smoothing is executed to the character area and the smoothing is not performed to the image area.
Claim 2
Dependent Claim
17 words
A method according to claim 1, wherein the output can be applied to a laser beam printer.
Claim 3
Dependent Claim
17 words
A method according to claim 1, wherein the output can be applied to an ink jet printer.
Claim 4
Dependent Claim
16 words
A method according to claim 2, wherein the output is executed when a resolution is changed.
Claim 5
Dependent Claim
18 words
A method according to claim 1, wherein the area is based on frame data regarding a document edition.
Claim 6
Dependent Claim
39 words
A method according to claim 1, wherein a document output at a high quality is executed by the smoothing process as if the document were outputted at an output resolution equal to or higher than as present output resolution.
Claim 7
Dependent Claim
30 words
A method according to claim 1, wherein the discrimination regarding the character area and the image area is performed on the basis of a command by a page describing language.
Claim 8
Dependent Claim
59 words
An outputting apparatus comprising: discriminating means for discriminating an area in which characters exist and an area in which an image exists; and means for outputting in a manner such that a smoothing is executed to the character area and the smoothing is not performed to the image area on the basis of a discrimination by said discriminating means.
Claim 9
Dependent Claim
17 words
An apparatus according to claim 8, wherein the output can be applied to a laser beam printer.
Claim 10
Dependent Claim
17 words
An apparatus according to claim 8, wherein the output can be applied to an ink jet printer.
Claim 11
Dependent Claim
19 words
An apparatus according to claim 9, wherein the output is executed in the case where a resolution is changed.
Claim 12
Dependent Claim
18 words
An apparatus according to claim 8, wherein the area is based on frame data regarding a document edition.
Claim 13
Dependent Claim
38 words
An apparatus according to claim 8, wherein a document is outputted at a high quality by said smoothing process as if the document were outputted at an output resolution equal to or higher than a present output resolution.
Claim 14
Dependent Claim
30 words
An apparatus according to claim 8, wherein the discrimination regarding the character area and the image area is performed on the basis of a command by a page describing language.
Claim 15
Independent Claim
55 words
A method and apparatus for increasing the apparant resolution of image data having characters and half tone regions, characterised by identifying characters and smoothing said characters by inserting additional pixels to reduce the effect of aliasing, and not inserting additional pixels in said half tone regions so as to maintain the tonalty of said regions.
References Cited (Backward Citations)
No citation records indexed.
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