Image processing device, image processing method, program, and electronic device for detecting a skin region of a subject
First Claim
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1. An image processing device for detecting a skin region representing a skin of a subject from a pickup image obtained by imaging the subject, the image processing device comprising:
- a first irradiating device configured to irradiate the subject with light of a first wavelength;
a second irradiating device configured to irradiate the subject with light of a second wavelength different from the first wavelength;
an image pickup section configured to;
capture a first pickup image obtained by imaging the subject when the subject is irradiated with light of the first wavelength, andcapture a second pickup image obtained by imaging the subject when the subject is irradiated with light of the second wavelength;
a calculating section configured to determine a difference image by determining a difference between luminance values of corresponding pixels of the first pickup image and the second pickup image;
an adjusting section configured to adjust the intensity of irradiation light of the first wavelength from the first irradiating means for the first pickup image and adjust the intensity of irradiation light of the second wavelength from the second irradiating means for the second pickup image so that pixel values of a skin region in the difference image are at least greater than a skin detection enabling value; and
a skin detecting section configured to detect the skin region in at least one of the first pickup image and the second pickup image on a basis of the adjusted first pickup image and the adjusted second pickup image.
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Abstract
An image processing device for detecting a skin region representing a skin of a subject from a pickup image obtained by imaging said subject, the image processing device includes: a first irradiating section; a second irradiating section; an image pickup section; an adjusting section; and a skin detecting section.
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Citations
19 Claims
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1. An image processing device for detecting a skin region representing a skin of a subject from a pickup image obtained by imaging the subject, the image processing device comprising:
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a first irradiating device configured to irradiate the subject with light of a first wavelength; a second irradiating device configured to irradiate the subject with light of a second wavelength different from the first wavelength; an image pickup section configured to; capture a first pickup image obtained by imaging the subject when the subject is irradiated with light of the first wavelength, and capture a second pickup image obtained by imaging the subject when the subject is irradiated with light of the second wavelength; a calculating section configured to determine a difference image by determining a difference between luminance values of corresponding pixels of the first pickup image and the second pickup image; an adjusting section configured to adjust the intensity of irradiation light of the first wavelength from the first irradiating means for the first pickup image and adjust the intensity of irradiation light of the second wavelength from the second irradiating means for the second pickup image so that pixel values of a skin region in the difference image are at least greater than a skin detection enabling value; and a skin detecting section configured to detect the skin region in at least one of the first pickup image and the second pickup image on a basis of the adjusted first pickup image and the adjusted second pickup image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image processing method of an image processing device for detecting a skin region representing a skin of a subject from a pickup image obtained by imaging the subject, the image processing device including first irradiating means, second irradiating means, image pickup means, calculating means, adjusting means, and skin detecting means, the image processing method comprising:
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irradiating, via the first irradiating means, the subject with light of a first wavelength; irradiating, via the second irradiating means, the subject with light of a second wavelength different from the first wavelength; capturing, via the image pickup means, a first pickup image obtained by imaging the subject when the subject is irradiated with light of the first wavelength; capturing, via the image pickup means, a second pickup image obtained by imaging the subject when the subject is irradiated with light of the second wavelength; determining, via the calculating means, a difference image by determining a difference between luminance values of corresponding pixels of the first pickup image and the second pickup image; adjusting, via the adjusting means, the intensity of irradiation light of the first wavelength from the first irradiating means for the first pickup image and adjusting the intensity of irradiation light of the second wavelength from the second irradiating means for the second pickup image so that pixel values of a skin region in a difference image are at least greater than a skin detection enabling value; and detecting, via the skin detecting means, the skin region in the first pickup image on a basis of the adjusted first pickup image and the adjusted second pickup image. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A machine-accessible device having instructions stored thereon that are configured when executed to cause a machine to at least:
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irradiating a subject with light of a first wavelength; recording a first pickup image obtained by imaging the subject when the subject is irradiated with light of the first wavelength; irradiating the subject with light of a second wavelength different from the first wavelength; recording a second pickup image obtained by imaging the subject when the subject is irradiated with light of the second wavelength; determining a difference image by determining a difference between luminance values of corresponding pixels of the first pickup image and the second pickup image; adjusting the intensity of irradiation light of the first wavelength for the first pickup image and adjusting the intensity of irradiation light of the second wavelength for the second pickup image so that pixel values of a skin region in the difference image are substantially equal to a skin detection enabling value; and detecting the skin region on a basis of the adjusted first pickup image and the adjusted second pickup image. - View Dependent Claims (17, 18, 19)
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Specification