Image processing apparatus and image processing apparatus control method
AssigneeCanon Kabushiki Kaisha
InventorFumiaki Takahashi
Life of this patent
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Abstract
An image processing apparatus is provided in which all WB coefficient values are calculated rather than only WB coefficient values of a default light source, then a result thereof is associated with intermediate raw data and stored. Further still, when a user gives instruction for a change in a light source setting when carrying out WB readjustments on a personal computer (407) or the like, WB coefficient values corresponding to the selected light source are read in from among all the WB coefficient values that have been associated with the intermediate raw data and applied to the intermediate raw data.
Claims16
An image processing apparatus, comprising:
- a first white balance coefficient value calculation unit configured to calculate a first white balance coefficient value for a first light source that has been set in relation to raw data;
- a second white balance coefficient value calculation unit configured to calculate a second white balance coefficient value for a light source other than the first light source in relation to the raw data;
- an intermediate raw data generation processing unit configured to generate intermediate raw data by applying the first white balance coefficient value to the raw data;
- and
- a storage unit configured to store as white balance information, information capable of specifying the second white balance coefficient value, associated with the generated intermediate raw data.
An image processing apparatus, comprising:
- a storage unit for storing intermediate raw data, which has been obtained by multiplying raw data by a first white balance coefficient value for a set light source, and white balance information relating to the raw data for a light source setting other than the set light source;
- a light source setting selection unit for selecting a new light source setting;
- and
- an image data generation processing unit for generating image data in which white balance readjustment has been performed using the intermediate raw data,
- wherein the image data generation processing unit performs generation processing of image data in which white balance readjustment has been performed in accordance with the white balance information for the selected light source setting based on the intermediate raw data when a light source setting has been selected other than the set light source using the light source setting selection means.
An image processing apparatus control method, comprising the steps of:
- calculating a first white balance coefficient value for a first light source that has been set in relation to raw data;
- calculating a second white balance coefficient value for a light source other than the first light source in relation to the raw data;
- generating intermediate raw data by applying the first white balance coefficient value to the raw data;
- and
- storing as white balance information, information capable of specifying the second white balance coefficient value, associated with the intermediate raw data.
An image processing apparatus control method, comprising steps of:
- storing in a storage unit intermediate raw data, which has been obtained by multiplying raw data by a first white balance coefficient value for a set light source, and white balance information relating to the raw data for a light source setting other than the set light source;
- selecting a new light source setting;
- and
- generating image data in which white balance readjustment has been performed using the intermediate raw data,
- wherein the step of generating the image data involves performing generation processing of image data in which the white balance readjustment has been performed in accordance with the white balance information for the selected light source setting based on the intermediate raw data when a light source setting has been selected other than the set light source in the step of selecting the light source setting.
Dependencies are inferred from the claim text.