| 摘要 |
This document relates to a display apparatus, and more particularly, to an image processing apparatus and method of a plasma display panel. An image processing apparatus of a plasma display panel according to an embodiment of the present invention comprises an inverse gamma correction unit that gamma-corrects an image signal through pervious stored gamma data, a half-toning unit that adds an error diffusion error value (Ei) of neighboring pixels to a noise value (n(i, j)) of a predetermined pattern and diffuses the added result into the inverse gamma corrected image signal, and a sub-field mapping unit that maps the half-toned image signal to a sub-field mapping table. According to the present invention, in the case where an error diffusion method is used in a plasma display panel screen, a noise value that is repeated every frame is used. It is thus possible to prevent the sizzling of the screen from occurring through a random noise process used to prevent static error diffusion noise.
|
