Display control method and apparatus
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United States of America Patent
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-
Apr 14, 1998
Grant Date -
N/A
app pub date -
Oct 25, 1995
filing date -
Oct 28, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is to provide a 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 a second resolution is higher than the first resolution comprises a calculation circuit for calculating a ratio of the first resolution to the second resolution, a determination circuit for determining the number of gradations on the basis of the ratio in case where the display device displays one pixel data of the input image data to a processing circuit for halftone processing the input image data to produce a value of the number of gradations determined by the a determination circuit and a data conversion circuit for converting the halftone-processed image data into data having a form which can be displayed on the display device.
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