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

Claim 1:
2. The image processing device according to claim 1,
wherein the luminance information storage part stores a luminance change coefficient together with the luminance information for each of the image regions, the luminance change coefficient being a coefficient used for the luminance change of the luminance change part;
the image processing device further comprises a standard coefficient acquisition part configured to acquire a standard coefficient, the standard coefficient being the luminance change coefficient in a case in which the luminance change is performed on the image region in which a luminance tendency is medium luminance, and
in a case when 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 differ, the luminance change part executes the luminance change of the corresponding image region using the luminance change coefficient according to an intermediate value between the past luminance change coefficient of the corresponding image region stored in the luminance information storage part and the standard coefficient acquired by the standard coefficient acquisition part.