IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND CONTROL PROGRAM

To set image data to be displayed to a desired gradation characteristic in correspondence with the actual gradation characteristic of a display device.SOLUTION: An image correction module (20) includes a gamma changing unit (240) that changes the gradation characteristic of image data to a desired gradation characteristic by using the maximum brightness and the minimum brightness of a display device, a display device correction unit (230) that derives a difference between the changed gradation characteristic after changing the gradation characteristic and the theoretical value of the desired gradation characteristic, and reflects the derived difference in the gradation characteristic of the input image data, and a display device gamma conversion unit (220) that performs gamma conversion on the gradation characteristic that reflects the difference according to the gradation characteristics of the display device (40), and outputs the gradation characteristic.SELECTED DRAWING: Figure 1 【課題】表示デバイスの実際の階調特性に対応させて、表示する画像データを所望の階調特性とする。【解決手段】画像補正モジュール（２０）は、前記表示デバイスの最大輝度および最小輝度を用いて、前記画像データの階調特性を所望の階調特性に変更するガンマ変更部（２４０）と、階調特性変更後の変更後階調特性と、所望の階調特性の理論値との差分を導出し、導出した差分を前記入力された画像データの階調特性に反映する表示デバイス補正部（２３０）と、差分が反映された階調特性に対し、表示デバイス（４０）の階調特性に応じたガンマ変換を行い、出力する表示デバイスガンマ変換部（２２０）とを備える。【選択図】図１