US7358994B2
Expired / Lapsed
US
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Image processing apparatus, image processing method, recording medium thereof, and program thereof
Assignee: Canon Inc
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Filing: 2003-07-16
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Granted: 2008-04-15
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Expires: 2023-07-16
Abstract
Abstract In image processing apparatus and method for displaying and printing a person image photographed by a digital camera, it is possible to automatically correct image data and output the person image of an optimum characteristic. In this apparatus, an image obtaining processor obtains the image data from a recording medium, a face region extraction processor extracts a face region of a person from the obtained image data, an image feature amount calculator calculates an image feature amount of the extracted face region, a correction effect inference processor infers whether or not a correction effect can be obtained by correcting a characteristic of the image data, based on the calculated image feature amount, and an image correction processor corrects the characteristic of the image data based on the image feature amount and thus outputs post-correction image data when it is inferred that the correction effect can be obtained.
Inventors
- 👤 Kotaro Yano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:23
CPC Classifications
G; G06; G06T; G06T5/00; G06T5/40; G06T5/90; G06T5/92; G06T2207/00; G06T2207/20; G06T2207/20004; G06T2207/20008; G06T2207/20112; G06T2207/20132; G06T2207/30; G06T2207/30196; G06T2207/30201
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
230 words
An image processing apparatus which performs a correction based on a feature amount of image data of a face region, the image processing apparatus comprising: a face region extraction unit, adapted to extract the face region of a person from input image data; a judgment unit, adapted to judge whether or not an area of the face region is larger than a predetermined value; a determination unit, adapted to determine, in a case where it is judged by the judgment unit that the area of the face region is larger than the predetermined value, whether or not to perform the correction to the input image data based on a first feature amount of the input image data of the face region and a second feature amount of corrected image data of the face region; and an image correction unit, adapted to perform the correction of the input image data in a case where it is determined by the determination unit to perform the correction to the input image data, wherein the image correction unit does not perform the correction to the input image data in a case where it is judged by the judgment unit that the area of the face region is smaller than the predetermined value, and in a case where it is determined by the determination unit not to perform the correction to the input image data.
Claim 2
Dependent Claim
230 words
An image processing apparatus which performs a correction based on a feature amount of image data of a face region, the image processing apparatus comprising: a face region extraction unit, adapted to extract the face region of a person from input image data; a judgment unit, adapted to judge whether or not an area of the face region is larger than a predetermined value; a determination unit, adapted to determine, in a case where it is judged by the judgment unit that the area of the face region is larger than the predetermined value, whether or not to perform the correction to the input image data based on a first feature amount of the input image data of the face region and a second feature amount of corrected image data of the face region; and an image correction unit, adapted to perform the correction of the input image data in a case where it is determined by the determination unit to perform the correction to the input image data, wherein the image correction unit does not perform the correction to the input image data in a case where it is judged by the judgment unit that the area of the face region is smaller than the predetermined value, and in a case where it is determined by the determination unit not to perform the correction to the input image data.
Claim 3
Dependent Claim
73 words
An image processing apparatus according to claim 1 , further comprising a discrimination unit, adapted to discriminate whether or not a photographing mode corresponding to the input image data is a person mode, wherein the image correction unit does not perform the correction to the input image data in a case where it is discriminated by the discrimination unit that the photographing mode corresponding to the input image data is the person mode.
Claim 4
Dependent Claim
23 words
An image processing apparatus according to claim 1 , wherein the first image feature amount and the second image feature amount are statistics.
Claim 5
Dependent Claim
18 words
An image processing apparatus according to claim 3 , wherein the statistics are based on a lightness histogram.
Claim 6
Dependent Claim
201 words
An image processing method which performs a correction based on a feature amount of image data of a face region, the method comprising: extracting a face region of a person from input image data; judging whether or not an area of the face region is larger than a predetermined value; determining, in a case where it is judged in the judging step that the area of the face region is larger than the predetermined value, whether or not to perform the correction to the input image data based on a first feature amount of the input image data of the face region and a second feature amount of corrected image data of the face region; and correcting the input image data in a case where it is determined in said determining step to perform the correction to the input image data, wherein said correcting step does not perform the correction to the input image data in a case where it is judged in said judging step that the area of the face region is smaller than the predetermined value and in the case where it is determined in said determining step not to perform the correction to the input image data.
Claim 7
Dependent Claim
201 words
An image processing method which performs a correction based on a feature amount of image data of a face region, the method comprising: extracting a face region of a person from input image data; judging whether or not an area of the face region is larger than a predetermined value; determining, in a case where it is judged in the judging step that the area of the face region is larger than the predetermined value, whether or not to perform the correction to the input image data based on a first feature amount of the input image data of the face region and a second feature amount of corrected image data of the face region; and correcting the input image data in a case where it is determined in said determining step to perform the correction to the input image data, wherein said correcting step does not perform the correction to the input image data in a case where it is judged in said judging step that the area of the face region is smaller than the predetermined value and in the case where it is determined in said determining step not to perform the correction to the input image data.
Claim 8
Dependent Claim
212 words
A computer-readable recording medium containing a program for causing a computer to execute a process to perform a correction based on a feature amount of image data of a face region, the process comprising: extracting a face region of a person from input image data; judging whether or not an area of the face region is larger than a predetermined value; determining, in a case where it is judged in said judging step that the area of the face region is larger than the predetermined value, whether or not to perform the correction to the input image data based on a first feature amount of the input image data of the face region and a second feature amount of corrected image data of the face region; and correcting the input image data in a case where it is determined in said determining step to perform the correction to the input image data, wherein said correcting step does not perform the correction to the input image data in a case where it is judged in said judging step that the area of the face region is smaller than the predetermined value and in a case where it is determined in said determining step not to perform the correction to the input image data.
Claim 9
Dependent Claim
212 words
A computer-readable recording medium containing a program for causing a computer to execute a process to perform a correction based on a feature amount of image data of a face region, the process comprising: extracting a face region of a person from input image data; judging whether or not an area of the face region is larger than a predetermined value; determining, in a case where it is judged in said judging step that the area of the face region is larger than the predetermined value, whether or not to perform the correction to the input image data based on a first feature amount of the input image data of the face region and a second feature amount of corrected image data of the face region; and correcting the input image data in a case where it is determined in said determining step to perform the correction to the input image data, wherein said correcting step does not perform the correction to the input image data in a case where it is judged in said judging step that the area of the face region is smaller than the predetermined value and in a case where it is determined in said determining step not to perform the correction to the input image data.
References Cited (Backward Citations)
US6101294A
Cited
US6148092A
Cited
US7233357B1
Cited
US6917707B1
Cited
US20060204124A1
Cited
US6970199B2
Cited
US20030223622A1
Cited
US7187788B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2011-04-15 | 2011-10-15 | 2012-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-04-15 | 2015-10-15 | 2016-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-04-15 | 2019-10-15 | 2020-04-15 | $7700.00 | Window Closed / Lapsed |