Image processing apparatus, method, and computer program
AssigneeCanon Kabushiki Kaisha
InventorKotaro Kitajima
Life of this patent
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Abstract
An image processing apparatus comprises a light source presumption unit adapted to presume a light source on the basis of a plurality of feature information including illuminance information of first image signals obtained by image capturing, information of signals belonging to a hue region of a predetermined color among the first image signals, and information of a color temperature associated with second image signals obtained by image capturing before the first image signals; and a white balance control unit adapted to perform white balance control in accordance with light source information presumed by the light source presumption unit.
Claims15
An image processing apparatus comprising:
- a light source presumption unit adapted to presume a light source on the basis of a plurality of feature information including illuminance information of first image signals obtained by image capturing, information of signals belonging to a hue region of a predetermined color among the first image signals, and information of a color temperature associated with second image signals obtained by image capturing before the first image signals;
- and
- a white balance control unit adapted to perform white balance control in accordance with light source information presumed by said light source presumption unit.
An image processing method comprising:
- a light source presumption step of presuming a light source on the basis of a plurality of feature information including illuminance information of first image signals obtained by image capturing, information of signals belonging to a hue region of a predetermined color among the first image signals, and information of a color temperature associated with second image signals obtained by image capturing before the first image signals;
- and
- a white balance control step of performing white balance control in accordance with light source information presumed in the light source presumption step.
A computer program for causing a computer to execute
- a presumption process of presuming a light source on the basis of a plurality of feature information including illuminance information of first image signals obtained by image capturing, information of signals belonging to a hue region of a predetermined color among the first image signals, and information of a color temperature associated with second image signals obtained by image capturing before the first image signals, and
- a control process of performing white balance control in accordance with light source information presumed in the light source presumption process.
Dependencies are inferred from the claim text.