US4958217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image processing apparatus and method capable of extracting a particular image area using either hue or brightness
Assignee: Canon Inc
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Filing: 1989-07-27
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Granted: 1990-09-18
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Expires: 2009-07-27
Abstract
Abstract An image processing apparatus capable of extracting a particular image area from an image by designating a color hue of the desired particular image area. After indication on one or more points in an object region of interest, an initial range of hue or of brightness is designated, and a predetermined color is painted throughout a region adjacent to the indicated point(s) and having a hue or brightness, respectively, within the predetermined range. If that process results in the coloring of an area exceeding that which the operator desires to cover, the predetermined range of hue or brightness, as the case may be, is narrowed, and the process is repeated.
Inventors
- 👤 Hiroyuki Kimura
- 👤 Takeshi Kobayashi
- 👤 Makoto Katsuma
- 👤 Kazunobu Urushihara
- 👤 Susumu Matsumura
- 👤 Hiroshi Ohmura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:51
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/62; H04N1/622; G; G06; G06T; G06T7/00; G06T7/10; G06T7/11; G06T7/187; G06T7/90; G06T2207/00; G06T2207/10; G06T2207/10024; G06T2207/20; G06T2207/20092; G06T2207/20101
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
63 words
An image processing apparatus comprising: input means for entering color image information; designation means for designating a particular hue value in said color image information; and extraction means for extracting an image area from said color image information, based on said particular hue value, said particular hue value being determined from the hue value of a particular position in said color image information.
Claim 2
Dependent Claim
63 words
An image processing apparatus comprising: input means for entering color image information; designation means for designating a particular hue value in said color image information; and extraction means for extracting an image area from said color image information, based on said particular hue value, said particular hue value being determined from the hue value of a particular position in said color image information.
Claim 3
Dependent Claim
33 words
An image processing apparatus according to claim 1, wherein said extraction means is adapted to extract an image area of hue values within a predetermined range with respect to said particular hue value.
Claim 4
Dependent Claim
36 words
An image processing apparatus according to claim 1, wherein said input means comprises means for entering color image information of three primary colors and determining hue values from the color image information of three primary colors.
Claim 5
Dependent Claim
43 words
An image processing apparatus comprising: input means for entering color image information; designation means for designating a particular brightness value of said color image information; and extraction means for extracting image area from said color image information, based on said particular brightness value.
Claim 6
Dependent Claim
43 words
An image processing apparatus comprising: input means for entering color image information; designation means for designating a particular brightness value of said color image information; and extraction means for extracting image area from said color image information, based on said particular brightness value.
Claim 7
Dependent Claim
28 words
An image processing apparatus according to claim 4, wherein said particular brightness value is determined from the brightness value of a particular position in said color image information.
Claim 8
Dependent Claim
33 words
An image processing apparatus according to claim 4, wherein said extraction means is adapted to extract an image area of brightness values within a predetermined range with respect to said particular brightness value.
Claim 9
Dependent Claim
36 words
An image processing apparatus according to claim 4, wherein said input means comprises means for entering color image information of three primary colors and determining brightness values from the color image information of three primary colors.
Claim 10
Dependent Claim
74 words
A color image information processing apparatus comprising: input means for entering color image information; designation means for designating either a particular hue value or a particular brightness value of said color image information; first extraction means for extracting a predetermined image area from said color image information, based on said particular brightness value; and second extraction means for extracting a predetermined image area from said color image information, based on said particular hue value.
Claim 11
Dependent Claim
74 words
A color image information processing apparatus comprising: input means for entering color image information; designation means for designating either a particular hue value or a particular brightness value of said color image information; first extraction means for extracting a predetermined image area from said color image information, based on said particular brightness value; and second extraction means for extracting a predetermined image area from said color image information, based on said particular hue value.
Claim 12
Dependent Claim
26 words
A color image information processing apparatus according to claim 8, further comprising selection means for selecting either said first extraction means or said second extraction means.
Claim 13
Dependent Claim
31 words
A color image information processing apparatus according to claim 9, wherein said selection means is adapted to select said first extraction means when said designation means selects an almost monochromatic color.
Claim 14
Dependent Claim
29 words
A color image information processing apparatus according to claim 9, wherein said selection means is adapted to select said second extraction means when said designation means selects a hue.
Claim 15
Dependent Claim
34 words
A color image information processing apparatus according to claim 8, wherein said particular brightness and hue values are determined from the brightness and hue values of a particular position in said color image information.
Claim 16
Dependent Claim
36 words
A color image information processing apparatus according to claim 8, wherein said first extraction means is adapted to extract an image area of brightness values within a predetermined range with respect to said particular brightness value.
Claim 17
Dependent Claim
36 words
A color image information processing apparatus according to claim 8, wherein said second extraction means is adapted to extract an image area of hue values within a predetermined range with respect to said particular hue value.
Claim 18
Dependent Claim
41 words
A color image information processing apparatus according to claim 8, wherein said input means comprises means for entering color image information of three primary colors and determining hue values and brightness values from the color image information of three primary colors.
Claim 19
Dependent Claim
50 words
A process for extracting an area of image information, comprising the steps of: providing image information; extracting an image area which has a characteristic value which is within a predetermined range; displaying thus extracted image area; and varying the width of said predetermined range according to thus displayed image area.
Claim 20
Dependent Claim
50 words
A process for extracting an area of image information, comprising the steps of: providing image information; extracting an image area which has a characteristic value which is within a predetermined range; displaying thus extracted image area; and varying the width of said predetermined range according to thus displayed image area.
Claim 21
Dependent Claim
17 words
An image area extraction process according to claim 16, wherein said characteristic value is a brightness value.
Claim 22
Dependent Claim
25 words
An image area extracting process according to claim 16, wherein said image information is color image information and said characteristic value is a hue value.
Claim 23
Dependent Claim
21 words
An image area extracting process according to claim 16, wherein said varying step is repeated until a desired area is extracted.
Claim 24
Dependent Claim
63 words
A color image information processing apparatus comprising: (a) input means for entering color image information; (b) designation means for designating a particular point in said color image information; and (c) extraction means for extracting an image area whose pixels have hue which is near a particular hue value, and whose pixels are all connected to the particular point designated by said designation means.
Claim 25
Dependent Claim
63 words
A color image information processing apparatus comprising: (a) input means for entering color image information; (b) designation means for designating a particular point in said color image information; and (c) extraction means for extracting an image area whose pixels have hue which is near a particular hue value, and whose pixels are all connected to the particular point designated by said designation means.
Claim 26
Dependent Claim
18 words
An apparatus according to claim 20, further comprising a second designation means for designating said particular hue value.
Claim 27
Dependent Claim
30 words
An apparatus according to claim 20, wherein said extraction means is adapted to extract an image area whose hue values are within a predetermined range of the particular hue value.
Claim 28
Dependent Claim
14 words
An apparatus according to claim 22, further comprising means for indicating said predetermined range.
Claim 29
Dependent Claim
34 words
An apparatus according to claim 20, wherein said input means comprises means for entering color image information of three primary colors and determining hue values from the color image information of three primary colors.
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USPTO Annuity & Maintenance Windows
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|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-17 | 1994-03-19 | 1994-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-17 | 1998-03-19 | 1998-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-17 | 2002-03-19 | 2002-09-18 | $7700.00 | Window Closed / Lapsed |