| 摘要 |
A data processing apparatus has a function capable of setting different vertical and horizontal magnifications. Data corresponding to an image input by a scanner is temporarily stored in a page memory. The data stored in the page memory is read out by a central processing unit (CPU), and is enlarged/reduced at predetermined conversion ratios in X and Y directions by an enlarge/reduction circuit. The enlarged/reduced data is temporarily stored in a display memory, and is displayed on a cathode-ray tube (CRT) display by the CPU. When the conversion ratios in the X and Y directions are selected and designated by a keyboard so that the image displayed on the CRT display is enlarged/reduced in at least one of the X and Y directions, the data temporarily stored in the display memory is enlarged/reduced at independent conversion ratios in the X and Y directions by the enlarge/reduction circuit. The data which is enlarged/reduced at independent conversion ratios in the X and Y directions is temporarily stored again in the display memory, and is then displayed on the CRT display by the CPU.
|
