US6608926B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image processing method, image processing apparatus and recording medium
Assignee: Canon Inc
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Filing: 1999-06-22
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Granted: 2003-08-19
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Expires: 2019-06-22
Abstract
Abstract In order to enable satisfactory image processing according to a characteristic of an original image, image data representing an original image is input; it is judged whether or not the value of a saturation component of the image data is larger than a predetermined value; if the value of the saturation component of the image data is larger than the predetermined value, a histogram of the original image is formed except the image data; a color processing condition is set on the basis of the formed histogram; and color processing is performed to the original image on the basis of the set color processing condition.
Inventors
- 👤 Tetsuya Suwa
- 👤 Kentaro Yano
- 👤 Manabu Yamazoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:39
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6077; H04N1/608; G; G06; G06T; G06T5/00; G06T5/40; G06T5/90; G06T5/92; H04N1/40; H04N1/407; H04N1/4072; H04N1/4074; G06T2207/00; G06T2207/10; G06T2207/10024
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
An image processing method comprising the steps of: inputting image data representing an original image; judging whether or not the value of a saturation component of the image data is larger than a predetermined value; forming a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value; and performing color processing to the original image data by using the color processing condition obtained from the histogram formed in said forming step.
Claim 2
Dependent Claim
86 words
An image processing method comprising the steps of: inputting image data representing an original image; judging whether or not the value of a saturation component of the image data is larger than a predetermined value; forming a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value; and performing color processing to the original image data by using the color processing condition obtained from the histogram formed in said forming step.
Claim 3
Dependent Claim
21 words
A method according to claim 1 , wherein the histogram is formed on the basis of a color component representing brightness.
Claim 4
Dependent Claim
24 words
A method according to claim 1 , wherein the color processing based on the color processing condition is performed to the unexcepted image data.
Claim 5
Dependent Claim
38 words
A method according to claim 1 , further comprising the step of judging whether or not the original image is a picture image, and wherein, if the original image is the picture image, the color processing is performed.
Claim 6
Dependent Claim
32 words
A method according to claim 4 , wherein it is judged whether or not the original image is the picture image, on the basis of a drawing function representing the original image.
Claim 7
Dependent Claim
104 words
An image processing apparatus comprising: an input unit adapted to input image data representing an original image; a judgment unit adapted to judge whether or not the value of a saturation component of the image data is larger than a predetermined value; a formation unit adapted to form a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value; and a color processing unit adapted to perform color processing to the original image data by using the color processing condition obtained from the histogram formed by said forming unit.
Claim 8
Dependent Claim
104 words
An image processing apparatus comprising: an input unit adapted to input image data representing an original image; a judgment unit adapted to judge whether or not the value of a saturation component of the image data is larger than a predetermined value; a formation unit adapted to form a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value; and a color processing unit adapted to perform color processing to the original image data by using the color processing condition obtained from the histogram formed by said forming unit.
Claim 9
Dependent Claim
96 words
A recording medium for recording a computer-readable program to execute an image processing method comprising the step of: inputting image data representing an original image; judging whether or not the value of a saturation component of the image data is larger than a predetermined value; forming a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value; and performing color processing to the original image data by using the color processing condition obtained from the histogram formed in said forming step.
Claim 10
Dependent Claim
96 words
A recording medium for recording a computer-readable program to execute an image processing method comprising the step of: inputting image data representing an original image; judging whether or not the value of a saturation component of the image data is larger than a predetermined value; forming a histogram of the original image data except when it is judged that the saturation component of the image data is larger than the predetermined value; and performing color processing to the original image data by using the color processing condition obtained from the histogram formed in said forming step.
Claim 11
Dependent Claim
52 words
A method according to claim 1 , wherein the color processing includes color fogging correction and contrast adjustment, the correction condition for the color fogging correction is a rotation matrix obtained from highlight and shadow image data obtained from the histogram, and the correction condition for the contrast adjustment is gamma correction.
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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) | 2006-08-18 | 2007-02-17 | 2007-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-08-18 | 2011-02-17 | 2011-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-08-18 | 2015-02-17 | 2015-08-19 | $7700.00 | Window Closed / Lapsed |