Controller, display device having the same, and computer readable medium for the same

摘要

A controller configured to control a display unit configured to change a maximum luminescence level is provided, the controller including a setting acquirer acquiring a setting value associated with the maximum luminescence level, an image data acquirer acquiring target image data, a feature value acquirer acquiring a feature value correlated with a brightness of a target image expressed by the target image data, using pixel values contained in the target image data, a corrector applying to the target image data a correction for adjusting the brightness of the target image using the setting value associated with the maximum luminescence level and the feature value correlated with the brightness of the target image, and a display controller controlling the display unit to display the target image expressed by the corrected target image data.

主权项

1. A display device comprising:
a display unit configured to change a maximum luminescence level; a processor; and a storage device storing processor-executable instructions configured to, when executed by the processor, cause the processor to serve as: a luminescence-level setting acquirer configured to acquire a luminescence-level setting value representing the maximum luminescence level of the display unit; an image data acquirer configured to acquire target image data; a feature value acquirer configured to acquire a feature value representing a brightness of a target image expressed by the target image data, the feature value being determined using a plurality of pixel values contained in the target image data; a correction unit configured to correct the target image data by adjusting the brightness of the target image using the luminescence-level setting value representing the maximum luminescence level of the display unit and the feature value representing the brightness of the target image expressed by the target image data; and a display controller configured to control the display unit to display the target image expressed by the corrected target image data, wherein the image data acquirer is configured to acquire, as the target image data, first target image data expressing a first target image having a first brightness and second target image data expressing a second target image having a second brightness higher than the first brightness, and wherein the correction unit is configured to, when the luminescence-level setting value is a particular value representing that the maximum luminescence level of the display unit is higher than a reference level, apply to the first target image data a first correction for lowering the first brightness by a first correction amount, and apply to the second target image data a second correction for lowering the second brightness by a second correction amount, the second correction amount when the luminescence-level setting value is the particular value being larger than the first correction amount when the luminescence-level setting value is the particular value.