Image processing apparatus, image capturing apparatus, control method, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorsHiroaki Nashizawa, Kota Terayama
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Abstract
An image processing apparatus that composites a plurality of images that have been captured with different exposure amounts, the image processing apparatus comprising at least one processor and/or circuit configured to function as following units: a specification unit configured to specify a signal value indicating an upper limit value of an output dynamic range with respect to at least one of the plurality of images; and a decision unit configured to decide on composition percentages of the plurality of images based on the signal value specified by the specification unit.
Claims19
An image processing apparatus that composites a plurality of images that have been captured with different exposure amounts, the image processing apparatus comprising at least one processor and/or circuit configured to function as following units:
- a specification unit configured to specify a signal value indicating an upper limit value of an output dynamic range with respect to at least one of the plurality of images;
- a decision unit configured to decide on composition percentages of the plurality of images based on the signal value specified by the specification unit;
- an obtaining unit configured to obtain signal thresholds that are used as a base in switching tendencies of the composition percentages of the respective plurality of images,
- wherein the decision unit changes the signal thresholds based on the signal values indicating the upper limit values of the output dynamic ranges of the respective plurality of images, and decides on the composition percentages based on the changed signal thresholds.
A control method for an image processing apparatus that composites a plurality of images that have been captured with different exposure amounts, the method comprising:
- specifying a signal value indicating an upper limit value of an output dynamic range with respect to at least one of the plurality of images;
- deciding on composition percentages of the plurality of images based on the signal value specified in the specifying;
- and
- obtaining signal thresholds that are used as a base in switching tendencies of the composition percentages of the respective plurality of images,
- wherein deciding on the composition percentages includes:
- changing the signal thresholds based on the signal values indicating the upper limit values of the output dynamic ranges of the respective plurality of images;
- and
- deciding on the composition percentages based on the changed signal thresholds.
Dependencies are inferred from the claim text.