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US 10,121,271 B2Granted
Image processing apparatus and image processing method
AssigneeCanon Kabushiki Kaisha
InventorTakashi Akahane
Life of this patent
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Abstract
According to various embodiments, an image processing apparatus includes an inputting unit configured to receive input of an image, a range information acquiring unit configured to acquire range information about a subject for each region of the input image, and a converting unit configured to assign a gradation to each region of the input image based on the range information and convert luminance data of the input image according to the assigned gradation.
Claims9
An image processing apparatus comprising:
- at least one processor or circuit;
- a memory,
- wherein the at least one processor or circuit is configured to function as following units using data in the memory:
- an inputting unit configured to receive input of a captured image;
- an acquiring unit configured to acquire, for each image area of the captured image, range information indicating a distance from an imaging apparatus to a subject at the time of imaging;
- and
- a converting unit configured to convert, for each image area of the captured image, a luminance value of the captured image according to the distance to the subject, and convert a color value of the captured image into a predetermined value, based on the range information,
- wherein the converting unit converts the luminance value of the captured image such that the luminance value decreases as the distance to the subject becomes shorter, and
- wherein the converting unit assigns an equal luminance value to an image area included in a predetermined distance range.
6 more elements
An image processing apparatus comprising:
- at least one processor or circuit;
- a memory,
- wherein the at least one processor or circuit is configured to function as following units using data in the memory:
- an inputting unit configured to receive input of a captured image;
- an acquiring unit configured to acquire, for each image area of the captured image, range information indicating a distance from an imaging apparatus to a subject at the time of imaging;
- and
- a converting unit configured to convert, for each image area of the captured image, the captured image into a shadow image of the subject expressed in light and dark according to the distance to the subject, based on the range information,
- wherein the converting unit converts the captured image such that darkness increases as the distance to the subject becomes shorter, and
- wherein the converting unit converts the captured image in an image area included in a predetermined distance range to equal darkness.
6 more elements
An image processing method comprising:
- receiving input of a captured image;
- acquiring, for each image area of the captured image, range information indicating a distance from an imaging apparatus to a subject at the time of imaging;
- and
- converting, for each image area of the captured image, a luminance value of the captured image according to the distance to the subject, and converting a color value of the captured image into a predetermined value, based on the range information,
- wherein the converting converts the luminance value of the captured image such that the luminance value decreases as the distance to the subject becomes shorter, and
- wherein the converting unit assigns an equal luminance value to an image area included in a predetermined distance range.
3 more elements
Dependencies are inferred from the claim text.