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US 11,902,693 B2Granted
Image processing device and image processing method
AssigneeRoland Corporation
InventorYoshihide Kasai
Life of this patent
Estimating the term…
Abstract
An image processing device is provided. The image processing devices includes an input part configured to input an input image; a cutout part configured to cut out a plurality of image regions from the input image input by the input part; and a luminance change part configured to execute luminance change of each of the image regions cut out by the cutout part.
Claims19
An image processing device comprising:
- an input part configured to input an input image;
- a cutout part configured to cut out a plurality of image regions from the input image input by the input part;
- a luminance change part configured to execute luminance change of each of the image regions cut out by the cutout part;
- a luminance information calculation part configured to calculate luminance information that is information on luminance for each of the image regions cut out by the cutout part;
- a luminance information storage part configured to store the luminance information for each of the image regions calculated by the luminance information calculation part;
- a past luminance determination part configured to determine a luminance tendency indicating a high or low of luminance of past luminance for each of the image regions from the luminance information for each of the image regions stored in the luminance information storage part;
- and
- a current luminance determination part configured to determine a current luminance tendency for each of the image regions from current luminance information for each of the image regions calculated by the luminance information calculation part,
- wherein each of the plurality of image regions is a rectangular area of the input image, and
- the luminance change part is configured to execute the luminance change of a corresponding image region in the image regions on a basis of the luminance information for each of the image regions calculated by the luminance information calculation part, and
- the luminance change part executes the luminance change of the corresponding image region on a basis of a change of the luminance tendency determined by the past luminance determination part and the luminance tendency determined by the current luminance determination part in the same image region.
8 more elements
An image processing device comprising:
- a cutout part configured to cut out a plurality of image regions from an input image, the plurality of image regions comprises a first image region and a second image region;
- a luminance change part configured to execute luminance change of each of the image regions cut out by the cutout part;
- a luminance information calculation part configured to calculate luminance information that is information on luminance for each of the image regions cut out by the cutout part;
- a switching image generation part configured to generate an image gradually changed from the first image region to the second image region, the image regions being cut out by the cutout part;
- an image switching part configured to switch from the first image region to the second image region by crossfading, and
- an output part configured to output the first image region and the second image region to a display,
- wherein each of the plurality of image regions is a rectangular area of the input image, and
- wherein each of the first image region and the second image region is a rectangular area of the input image,
- wherein the image processing device further comprises:
- a change coefficient calculation part configured to calculate a luminance change coefficient used for the luminance change of the luminance change part from the luminance information for each of the image regions calculated by the luminance information calculation part;
- a switching image generation part configured to generate an image gradually changed from one image region to another image region while mixing the one image region with the other image region, on which the luminance change having been performed on the image regions by the luminance change part;
- and
- a mixing ratio acquisition part configured to acquire a mixing ratio of the one image region in the switching image generation part,
- wherein, when the luminance change part performs the luminance change on the one of the image regions combined by the switching image generation part, the luminance change part executes the luminance change using the luminance change coefficient obtained by changing the luminance change coefficient of the one of the image regions calculated by the change coefficient calculation part to the luminance change coefficient of the other image region calculated by the change coefficient calculation part according to the mixing ratio acquired by the mixing ratio acquisition part.
11 more elements
An image processing method executed by an image processing device, the image processing method comprising:
- inputting an input image;
- cutting out a plurality of image regions from the input image, the images regions being different parts of the input image;
- a luminance information calculation step of calculating luminance information for each of the image regions that has been cut out, the luminance information being information on luminance;
- and
- a luminance change step of executing luminance change of a corresponding image region on the image regions on a basis of the luminance information for each of the image regions calculated in the luminance information calculation step to change a luminance of one of the image regions calculated in the luminance information calculation step into a luminance of another of the image regions calculated in the luminance information calculation step,
- wherein each of the plurality of image regions is a rectangular area of the input image.
3 more elements
Dependencies are inferred from the claim text.