Display control method and apparatus

摘要

The present invention is to provide display control method and apparatus which can display a high-quality image excellent in a gradation even if a resolution of a display device is higher than that of an input image. The display control apparatus which displays input image data of a first resolution on a display device of which second resolution is higher than the first resolution comprises calculation means for calculating a ratio of the first resolution to the second resolution, determination means for determining the number of gradation on the basis of the ratio in case where the display device displays one pixel data of the input image data to processing means for halftone processing the input image data to produce a value of the number of gradation determined by the determination means and data conversion means for converting the halftone-processed image data into data of which form can be displayed on the display device. <IMAGE>