Image processing apparatus, image processing method, and program
AssigneeSony Corporation
InventorTakashi Kohashi
Life of this patent
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Abstract
The present disclosure relates to an image processing apparatus, an image processing method, and a program which highlight a main object more outstandingly. A tone curve adjustment unit performs tone curve adjustment on a target region of an input image signal (IN), and supplies an image signal subjected to the tone curve adjustment to a local level detection unit. The local level detection unit obtains a local level. A contrast adjustment unit performs adaptive contrast enhancement according to the local level from the local level detection unit. The present disclosure can be applied to an image processing apparatus which highlights a predetermined part of an image using the tone curve adjustment and the adaptive contrast adjustment, for example.
Claims19
An image processing apparatus, comprising:
- a central processing unit (CPU) configured to:
- generate a first adjusted image based on tone curve adjustment of at least one of a first primary object region or a first secondary region of a subject image,
- wherein the first secondary region of the subject image, is different from the first primary object region of the subject image;
- and
- generate a second adjusted image based on contrast enhancement of a tone curve adjusted region of the first adjusted image,
- wherein the contrast enhancement comprises modification of a first contrast enhancement characteristic of the tone curve adjusted region of the first adjusted image based on a first average value of a plurality of first local regions in the first adjusted image.
An image processing method, comprising:
- in an image processing apparatus:
- generating a first adjusted image based on tone curve adjustment of at least one of a primary object region or a secondary region of a subject image,
- wherein the secondary region of the subject image is different from the primary object region of the subject image;
- and
- generating a second adjusted image based on contrast enhancement of a tone curve adjusted region of the first adjusted image,
- wherein the contrast enhancement comprises modifying a contrast enhancement characteristic of the tone curve adjusted region of the first adjusted image based on an average value of a plurality of local regions in the first adjusted image.
A non-transitory computer-readable medium having stored thereon, computer-executable instructions for causing a computer to execute operations, the operations comprising:
- generating a first adjusted image based on tone curve adjustment of at least one of a primary object region or a secondary region of a subject image,
- wherein the secondary region of the subject image is different from the primary object region of the subject image;
- and
- generating a second adjusted image based on contrast enhancement of a tone curve adjusted region of the first adjusted image,
- wherein the contrast enhancement comprises modifying a contrast enhancement characteristic of the tone curve adjusted region of the first adjusted image based on an average value of a plurality of local regions in the first adjusted image.
Dependencies are inferred from the claim text.