Abstract: An image projection device includes an optical correction unit, a panel and a lens. The optical correction unit is utilized for receiving an image and pre-distorting the image to generate a pre-distorted image according to pre-distortion parameters. The panel is coupled to the optical correction unit, and is utilized for receiving and projecting the pre-distorted image. The lens is positioned in front of the panel, where the pre-distorted image projected from the panel passes through the lens, and the pre-distortion parameters correspond to distortion effects caused by the lens.

Abstract: The invention provides a method for dynamically processing an image. In an exemplary embodiment, the image comprises a plurality of pixels. First, a value of a target pixel of the pixels is subtracted from values of surrounding pixels of the target pixel to obtain a plurality of difference values. A plurality of absolute values of the difference values is then calculated. The absolute values are then summed to obtain an accumulation value. The accumulation value is then compared with N reference values to select a target interval corresponding to the accumulation value. A filter coefficient set corresponding to the target interval is then determined. Finally, the target pixel is filtered according to the filter coefficient set.