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US 8,913,154 B2Granted
Image processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasahiro Takayama, Kenji Ouchi
Life of this patent
Estimating the term…
Abstract
An image processing apparatus comprises an estimation unit which estimates, from color distribution information of an image obtained by capturing an object, a depth of water at which the captured object is positioned, and a white balance control unit which performs white balance control along an axis different from a black body radiation axis in accordance with the depth of water estimated by the estimation unit.
Claims13
An image processing apparatus comprising:
- an estimation unit which estimates, from color distribution information of an image obtained by capturing an object, a depth from a water surface at which the captured object is positioned;
- and
- a white balance control unit which performs white balance control based on an area in a color plane corresponding to the depth estimated by said estimation unit,
- wherein said estimation unit performs linear approximation for the color distribution information of the captured image to obtain a correlation coefficient, and estimates the depth from the correlation coefficient.
1 more element
An image processing apparatus comprising:
- an estimation unit which estimates, from color distribution information of an image obtained by capturing an object, a depth from the water surface at which the captured object is positioned;
- and
- a white balance control unit which performs white balance control based on an area in a color plane corresponding to the depth estimated by said estimation unit,
- wherein said estimation unit performs elliptical approximation for the color distribution information of the captured image, and estimates the depth from a ratio of a length of a major axis and a length of a minor axis of an ellipse.
1 more element
Dependencies are inferred from the claim text.