| 摘要 |
In an image processing device, in order to display an image on a display device having nonlinear gradation characteristics, first, a contrast estimation unit ( 37 ) estimates the contrast of the image represented by the image data ( 51 ) input from an image input device. Next, a luminance correction unit ( 38 ) subjects the pixel data constituting the image data ( 51 ) to a luminance conversion process on the basis of the estimated contrast and the gradation characteristics. Furthermore, the pixel data may sometimes be subjected to a sharpening process. The level of the sharpening performed for one or a plurality of character regions in the image represented by the image data ( 51 ) is higher than that for the pixel data of the pixels in remaining regions other than the character regions in the image. The image data ( 52 ) comprising the pixel data subjected to these processes is supplied to the display device. Therefore, the visibility of the image displayed on the display device can be improved.
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