Image processing apparatus, image capturing apparatus, image processing method, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorYOHEI YAMANAKA
Life of this patent
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Abstract
There is provided an apparatus. A first generation unit generates a first image with a first dynamic range from a shot image. A second generation unit generates a second image with a second dynamic range from the shot image. A gain map generation unit generates, based on the first image and the second image, a gain map for converting a dynamic range of the second image into the first dynamic range. A reduction unit applies first noise reduction processing to the gain map. An associates the gain map with the second image.
Claims15
A processing apparatus, comprising:
- a first generation unit configured to generate a first image with a first dynamic range from a shot image;
- a second generation unit configured to generate a second image with a second dynamic range from the shot image;
- a gain map generation unit configured to generate, based on the first image and the second image, a gain map for converting a dynamic range of the second image into the first dynamic range;
- a reduction unit configured to apply first noise reduction processing to the gain map;
- and
- an association unit configured to associate the gain map with the second image.
An apparatus, comprising:
- a first generation unit configured to generate a first image which has a first dynamic range, and to which first noise reduction processing has been applied, from a shot image;
- a second generation unit configured to generate a second image which has a second dynamic range, and to which the first noise reduction processing has been applied, from the shot image;
- a third generation unit configured to generate a third image which has the second dynamic range, and to which second noise reduction processing has been applied at an intensity independent of the first noise reduction processing, from the shot image;
- a gain map generation unit configured to generate, based on the first image and the second image, a gain map for converting a dynamic range of the third image into the first dynamic range;
- and
- an association unit configured to associate the gain map with the third image.
A method executed by an apparatus, comprising:
- generating a first image with a first dynamic range from a shot image;
- generating a second image with a second dynamic range from the shot image;
- generating, based on the first image and the second image, a gain map for converting a dynamic range of the second image into the first dynamic range;
- applying first noise reduction processing to the gain map;
- and
- associating the gain map with the second image.
A method executed by an apparatus, comprising:
- generating a first image which has a first dynamic range, and to which first noise reduction processing has been applied, from a shot image;
- generating a second image which has a second dynamic range, and to which the first noise reduction processing has been applied, from the shot image;
- generating a third image which has the second dynamic range, and to which second noise reduction processing has been applied at an intensity independent of the first noise reduction processing, from the shot image;
- generating, based on the first image and the second image, a gain map for converting a dynamic range of the third image into the first dynamic range;
- and
- associating the gain map with the third image.
A non-transitory computer-readable storage medium which stores a program for causing a computer to execute a method comprising:
- generating a first image with a first dynamic range from a shot image;
- generating a second image with a second dynamic range from the shot image;
- generating, based on the first image and the second image, a gain map for converting a dynamic range of the second image into the first dynamic range;
- applying first noise reduction processing to the gain map;
- and
- associating the gain map with the second image.
A non-transitory computer-readable storage medium which stores a program for causing a computer to execute a method comprising:
- generating a first image which has a first dynamic range, and to which first noise reduction processing has been applied, from a shot image;
- generating a second image which has a second dynamic range, and to which the first noise reduction processing has been applied, from the shot image;
- generating a third image which has the second dynamic range, and to which second noise reduction processing has been applied at an intensity independent of the first noise reduction processing, from the shot image;
- generating, based on the first image and the second image, a gain map for converting a dynamic range of the third image into the first dynamic range;
- and
- associating the gain map with the third image.
Dependencies are inferred from the claim text.