EP0675639A2
Expired / Lapsed
EP
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Image processing apparatus and method
Assignee: Canon Inc
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Filing: 1995-03-30
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Granted: —
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Expires: 2015-03-30
Abstract
Abstract An image processing apparatus is constructed by an input unit to input image data, a setting unit to set a color space compression processing mode on the basis of a kind of signal format of the inputted image data, and a color space compression processing unit to execute a color space compressing process to the inputted image data on the basis of the set color space compression processing mode. The color space compression processing mode has a first mode in which the color space compression is executed and a second mode in which the color space compression is not executed. In case of the CMYK signal format, the second mode is set. In case of the RGB signal format, the first mode is set.
Inventors
- 👤 Hiroyuki C/O Canon K.K. Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 12:00
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6058
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
An image processing apparatus comprising: input means for inputting image data; setting means for setting a color space compression processing mode on the basis of a kind of signal format of said inputted image data; and color space compression processing means for performing a color space compressing process to said inputted image data on the basis of said set color space compression processing mode, wherein said color space compression processing mode has a first mode in which the color space compression is performed and a second mode in which the color space compression is not performed.
Claim 2
Dependent Claim
23 words
An apparatus according to claim 1, wherein in the case where said signal format is a CMYK format, said second mode is set.
Claim 3
Dependent Claim
23 words
An apparatus according to claim 1, wherein in the case where said signal format is an RGB format, said first mode is set.
Claim 4
Dependent Claim
18 words
An apparatus according to claim 1, wherein said color space compression processing means executes a matrix arithmetic operation.
Claim 5
Dependent Claim
22 words
An apparatus according to claim 1, wherein said color space compression processing means is set to be through in said second mode.
Claim 6
Dependent Claim
19 words
An apparatus according to claim 1, wherein said color space compression processing means is bypassed in said second mode.
Claim 7
Dependent Claim
114 words
An image processing apparatus comprising: first input means for scanning an original image and generating a first image signal; second input means for inputting a second image signal from an external apparatus; and image forming means for forming an image onto a recording medium in accordance with the image signal from said first or second input means, wherein said apparatus further includes color space compressing means for executing a color space compressing process to said first image signal inputted by said first input means and outputting the processed image signal and for outputting said second image signal inputted by said second input means without performing a color space compression to said second image signal.
Claim 8
Dependent Claim
15 words
An apparatus according to claim 7, wherein said external apparatus is an external memory apparatus.
Claim 9
Dependent Claim
14 words
An apparatus according to claim 7, wherein said external apparatus is a film scanner.
Claim 10
Dependent Claim
98 words
An image processing method comprising: an input step of inputting image data; a setting step of setting a color space compression processing mode on the basis of a kind of signal format of said inputted image-data; and a color space compression processing step of executing a color space compressing process to said inputted image data on the basis of said set color space compression processing mode, wherein said color space compression processing mode has a first mode in which the color space compression is performed and a second mode in which the color space compression is not performed.
Claim 11
Dependent Claim
117 words
An image processing method comprising: a first input step of scanning an original image and generating a first image signal; a second input step of inputting a second image signal from an external apparatus; and an image forming step of forming an image onto a recording medium in accordance with the image signal from said first or second input step, wherein said method further includes a color space compressing step of performing a color space compressing process to the first image signal inputted in said first input step and outputting the processed image signal and outputting the second image signal inputted in said second input step without performing the color space compression to said second image signal.
Claim 12
Dependent Claim
36 words
Color image processing apparatus capable of carrying out color space compression on input colour image data, and means for determining in accordance with the input image data whether or not colour space compression is carried out.
References Cited (Backward Citations)
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