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US 12,586,166 B2Granted
Image processing method, image processing apparatus, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorsTakashi Oniki, Norihito Hiasa, Masakazu Kobayashi
Life of this patent
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Abstract
A method includes sharpening a first image to generate a second image, generating a first weight map based on the first image, generating a second weight map based on the second image, and generating a third image based on the first image, the second image, the first weight map, and the second weight map, wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image.
Claims16
An image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- generating a third image based on the first image, the second image, the first weight map, and the second weight map;
- and
- generating a third weight map based on the first weight map and the second weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image, and
- wherein the third image is generated by weighted-averaging the first image and the second image using the third weight map.
5 more elements
An image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- generating a third image based on the first image, the second image, the first weight map, and the second weight map;
- and
- generating an intermediate corrected image based on the first image, the second image, and the first weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image, and
- wherein the third image is generated based on the first image, the second weight map, and the intermediate corrected image.
5 more elements
An image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- generating a third image based on the first image, the second image, the first weight map, and the second weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image,
- wherein the first weight map is generated using a first response function representing a relationship between a pixel value of the first image and an adjustment value of the first weight map, and
- wherein the second weight map is generated using a second response function representing a relationship between a pixel value of the second image and an adjustment value of the second weight map.
4 more elements
An image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- generating a third image based on the first image, the second image, the first weight map, and the second weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image,
- wherein the first image is obtained by capturing an image using an optical system, and
- wherein the third image is generated using a fourth weight map based on information regarding performance of the optical system.
4 more elements
A storage medium storing a program for causing a computer to execute an image processing method, the image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- and
- generating a third image based on the first image, the second image, the first weight map, and the second weight map;
- generating a third weight map based on the first weight map and the second weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image, and
- wherein the third image is generated by weighted-averaging the first image and the second image using the third weight map.
5 more elements
A storage medium storing a program for causing a computer to execute an image processing method, the image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- and
- generating a third image based on the first image, the second image, the first weight map, and the second weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image,
- wherein the method further comprises generating an intermediate corrected image based on the first image, the second image, and the first weight map, and
- wherein the third image is generated based on the first image, the second weight map, and the intermediate corrected image.
5 more elements
An image processing apparatus comprising:
- at least one memory device that stores a set of instructions;
- and
- at least one processor that executes the set of instructions to execute an image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- generating a third image based on the first image, the second image, the first weight map, and the second weight map;
- and
- generating a third weight map based on the first weight map and the second weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image, and
- wherein the third image is generated by weighted-averaging the first image and the second image using the third weight map.
8 more elements
An image processing apparatus comprising:
- at least one memory device that stores a set of instructions;
- and
- at least one processor that executes the set of instructions to execute an image processing method comprising:
- sharpening a first image to generate a second image;
- generating a first weight map based on the first image;
- generating a second weight map based on the second image;
- generating a third image based on the first image, the second image, the first weight map, and the second weight map;
- and
- generating an intermediate corrected image based on the first image, the second image, and the first weight map,
- wherein each of the first weight map and the second weight map indicate a weight of one of the first image and the second image in the generation of the third image, and
- wherein the third image is generated based on the first image, the second weight map, and the intermediate corrected image.
8 more elements
Dependencies are inferred from the claim text.