US6476793B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
User interactive copy processing for selective color conversion or adjustment without gradation loss, and adjacent non-selected-color areas are not affected
Assignee: Canon Inc
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Filing: 1996-05-15
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Granted: 2002-11-05
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Expires: 2016-05-15
Abstract
Abstract A more-natural-looking video is reproduced and a video data having a desired color tone is formed by preserving the tone of a video as an original in color conversion at a desired ratio. To this end, a criterion color register stores color information (hue, chroma and density) for determining whether input pixel data is eligible for conversion, a target color register stores color information indicative of a target color, and a preservation degree register stores a preservation degree that determines the degree of preservation in color conversion. A color determination section determines whether the input pixel data is eligible for conversion, and the determination result is output to a color converter section. The color converter section performs color conversion to eligible pixel data according to the information stored in the criterion color register, target color register and preservation degree register, with the result of the color conversion being output.
Inventors
- 👤 Eiichi Motoyama
- 👤 Shigeo Yamagata
- 👤 Fumio Mikami
- 👤 Koji Arai
- 👤 Kenji Hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:57
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/62; G; G09; G09G; G09G5/00; G09G5/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
160 words
An image processing apparatus comprising: a first specifying unit, that specifies a color to be converted among a plurality of colors on a color image; a second specifying unit, that specifies a color after color conversion corresponding to the color to be converted; a third specifying unit, that specifies a degree of preservation in color conversion from the color to be converted to the color after color conversion; a fourth specifying unit, that specifies a criterion range in color conversion; and a processor, that processes a hue of the color to be converted to a hue of the color after color conversion, wherein at least one of chroma and brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range, and each of said first specifying unit, said second specifying unit, said third specifying unit, and said fourth specifying unit is specified in accordance with a user's instructions.
Claim 2
Dependent Claim
160 words
An image processing apparatus comprising: a first specifying unit, that specifies a color to be converted among a plurality of colors on a color image; a second specifying unit, that specifies a color after color conversion corresponding to the color to be converted; a third specifying unit, that specifies a degree of preservation in color conversion from the color to be converted to the color after color conversion; a fourth specifying unit, that specifies a criterion range in color conversion; and a processor, that processes a hue of the color to be converted to a hue of the color after color conversion, wherein at least one of chroma and brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range, and each of said first specifying unit, said second specifying unit, said third specifying unit, and said fourth specifying unit is specified in accordance with a user's instructions.
Claim 3
Dependent Claim
24 words
The image processing apparatus according to claim 1 , wherein each of said first specifying unit and said second specifying unit comprise a digitizer.
Claim 4
Dependent Claim
25 words
The image processing apparatus according to claim 1 , wherein each of said first specifying unit and said second specifying unit comprise a color palette.
Claim 5
Dependent Claim
21 words
The image processing apparatus according to claim 3 , wherein information on the color palette is stored in detachable memory means.
Claim 6
Dependent Claim
22 words
The image processing apparatus according to claim 1 , further comprising a display unit for displaying process results by the processing means.
Claim 7
Dependent Claim
30 words
The video processing apparatus according to claim 5 , wherein said display unit presents as multiple images the image that are processed at a plurality of degrees of color change.
Claim 8
Dependent Claim
131 words
An image processing method comprising the steps of: specifying a color on a color image to be converted; specifying a color after color conversion corresponding to the color to be converted; specifying a degree of preservation in color conversion from the color to be converted to the color after the color conversion; specifying a criterion range on a color image to be converted; and converting a hue of the color to be converted to a hue of the color after color conversion, wherein at least one of chroma and brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range, and each of said first, second, third, and fourth specifying steps are specified in accordance with a user's instructions.
Claim 9
Dependent Claim
131 words
An image processing method comprising the steps of: specifying a color on a color image to be converted; specifying a color after color conversion corresponding to the color to be converted; specifying a degree of preservation in color conversion from the color to be converted to the color after the color conversion; specifying a criterion range on a color image to be converted; and converting a hue of the color to be converted to a hue of the color after color conversion, wherein at least one of chroma and brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range, and each of said first, second, third, and fourth specifying steps are specified in accordance with a user's instructions.
Claim 10
Dependent Claim
20 words
The image processing method according to claim 7 , wherein each of said color-specifying steps are performed using a digitizer.
Claim 11
Dependent Claim
25 words
The image processing method according to claim 7 , further comprising the step of presenting process results obtained in said converting step, using a display.
Claim 12
Dependent Claim
29 words
The image processing apparatus according to claim 9 , wherein the display presents as multiple images the images that are processed at a plurality of degrees of color change.
Claim 13
Dependent Claim
22 words
The image processing method according to claim 7 , wherein said first and second specifying steps are performed using a color palette.
Claim 14
Dependent Claim
31 words
The image processing method according to claim 11 , wherein information on the color palette is stored in a detachable memory of an image processor that performs said image processing method.
Claim 15
Dependent Claim
161 words
An image processing apparatus comprising: a first specifying unit, that specifies a color to be converted among a plurality of colors on a color image; a second specifying unit, that specifies a color conversion corresponding to the color to be converted; a third specifying unit, that specifies a degree of preservation in color conversion from the color to be converted to the color after color conversion; a fourth specifying unit, that specifies a criterion range in color conversion; and a processor, that processes a hue of the color to be converted to a hue of the color after color conversion, wherein at least one of the chroma and the brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range, and wherein each of said first specifying unit and said second specifying unit comprise a color palette, and information on the color palette is stored in a detachable memory.
Claim 16
Dependent Claim
161 words
An image processing apparatus comprising: a first specifying unit, that specifies a color to be converted among a plurality of colors on a color image; a second specifying unit, that specifies a color conversion corresponding to the color to be converted; a third specifying unit, that specifies a degree of preservation in color conversion from the color to be converted to the color after color conversion; a fourth specifying unit, that specifies a criterion range in color conversion; and a processor, that processes a hue of the color to be converted to a hue of the color after color conversion, wherein at least one of the chroma and the brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range, and wherein each of said first specifying unit and said second specifying unit comprise a color palette, and information on the color palette is stored in a detachable memory.
Claim 17
Dependent Claim
147 words
An image processing method comprising the steps of: specifying a color on a color image to be converted; specifying a color after color conversion corresponding to the color to be converted; specifying a degree of preservation in color conversion from the color to be converted to the color after the color conversion; specifying a criterion range on a color image to be converted; and converting a hue of the color to be converted to a hue of the color after color conversion; and presenting process results obtained in said converting step using a display, wherein the display presents as multiple images the images that are processed at a plurality of degrees of color change, and wherein at least one of the chroma and the brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range.
Claim 18
Dependent Claim
147 words
An image processing method comprising the steps of: specifying a color on a color image to be converted; specifying a color after color conversion corresponding to the color to be converted; specifying a degree of preservation in color conversion from the color to be converted to the color after the color conversion; specifying a criterion range on a color image to be converted; and converting a hue of the color to be converted to a hue of the color after color conversion; and presenting process results obtained in said converting step using a display, wherein the display presents as multiple images the images that are processed at a plurality of degrees of color change, and wherein at least one of the chroma and the brightness of the color to be converted is converted in accordance with the degree of preservation in color conversion and the criterion range.
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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) | 2005-11-04 | 2006-05-06 | 2006-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-04 | 2010-05-06 | 2010-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-04 | 2014-05-06 | 2014-11-05 | $7700.00 | Window Closed / Lapsed |