EP0262801A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method or system for processing image data
Assignee: Canon Inc
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Filing: 1987-08-28
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Granted: —
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Expires: 2007-08-28
Abstract
Abstract Disclosed is a method of processing image data, including controlling to output multi-level value image data for reproducing a multi-level value image and bi-level value image data for reproducing a bi-level value image with respect to a predetermined area, thereby reproducing the multi-level and bi-level value images which constitute a single image. Also disclosed is an interface system including a multi-level converter for converting the multi-level value image data into the bi-level value image data and vice versa, a resolution converter operated in synchronism with the multi-level converter to convert a resolution of the multi-level value image data, an area data memory for storing area data corresponding to an instruction input representing a multi-level or bi-level value image area, and an output device for selecting the multi-level value image data from the resolution converter or the multi-level value image data from the multi-level converter on the basis of the area data and for outputting selected data to the image output device.
Inventors
- 👤 Yasuhisa Ishizawa
- 👤 Kenjiro Chyo
- 👤 Hiroshi Nonoshita
- 👤 Yasuhisa Shigehara
- 👤 Seiji Saito
- 👤 Shigeki Miura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 15:47
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/3872; G; G06; G06T; G06T11/00; G06T11/60; H04N1/3871; H04N1/3873
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
48 words
A method of processing image data, comprising controlling to output multi-level value image data for reproducing a multi-level value image and bi-level value image data for reproducing a bi-level value image with respect to a predetermined area, thereby reproducing an image including the multi-level and bi-level value images.
Claim 2
Independent Claim
48 words
A method of processing image data, comprising controlling to output multi-level value image data for reproducing a multi-level value image and bi-level value image data for reproducing a bi-level value image with respect to a predetermined area, thereby reproducing an image including the multi-level and bi-level value images.
Claim 3
Dependent Claim
13 words
A method according to claim 1, wherein the predetermined area is set beforehand.
Claim 4
Dependent Claim
19 words
A method according to claim 1, wherein the predetermined area is set by points along X and Y directions.
Claim 5
Dependent Claim
30 words
A method according to claim 1, wherein the multi-level value image data is output within the predetermined area and the bi-level value image data is output outside the predetermined area.
Claim 6
Dependent Claim
19 words
A method according to claim 1, wherein the multi-level value image data is data read out from a memory.
Claim 7
Dependent Claim
25 words
A method according to claim 5, wherein the multi-level value data is read out from the memory in synchronism with designation of the predetermined area.
Claim 8
Dependent Claim
24 words
A method according to claim 1, wherein output control in the predetermined area is performed by calculating the multi-level and bi-level value image data.
Claim 9
Dependent Claim
219 words
A interface system including image data input means for inputting multi-level value image data, multi-level value image data storing means for storing the multi-level value data, binarizing means for binarizing the multi-level value image data into bi-level value image data, bi-level value image data storing means for storing the bi-level value image data, and recognition data sotring means for storing recognition data, the recognition data storing means being provided with memory spaces corresponding to those of the multi-level and bi-level value data storing means, the interface system being inserted between a host computer and an image input/output device, the interface system comprising: multi-level converting means for converting the multi-level value image data from the image input device into the bi-level value image data and for converting the bi-level value image data into the multi-level value image data; resolution converting means operable parallel to the multi-level converting means, for converting a resolution of the multi-level value image data; area data storing means for storing area data corresponding to an instruction input representing a multi-level or bi-level value image area; and output means for selecting the multi-level value image data from the resolution converting means or/and multi-level image data from the multi-level converting means on the basis of the area data and for outputting selected data to the image output device.
Claim 10
Dependent Claim
219 words
A interface system including image data input means for inputting multi-level value image data, multi-level value image data storing means for storing the multi-level value data, binarizing means for binarizing the multi-level value image data into bi-level value image data, bi-level value image data storing means for storing the bi-level value image data, and recognition data sotring means for storing recognition data, the recognition data storing means being provided with memory spaces corresponding to those of the multi-level and bi-level value data storing means, the interface system being inserted between a host computer and an image input/output device, the interface system comprising: multi-level converting means for converting the multi-level value image data from the image input device into the bi-level value image data and for converting the bi-level value image data into the multi-level value image data; resolution converting means operable parallel to the multi-level converting means, for converting a resolution of the multi-level value image data; area data storing means for storing area data corresponding to an instruction input representing a multi-level or bi-level value image area; and output means for selecting the multi-level value image data from the resolution converting means or/and multi-level image data from the multi-level converting means on the basis of the area data and for outputting selected data to the image output device.
References Cited (Backward Citations)
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