Patent ID: 11902693
Assignee: ROLAND CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. 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.