| 摘要 |
An image-data processing apparatus includes a writer which writes image data into a memory according to a non-interlaced-scanning or an interlaced-scanning of each N line. An updater updates a cumulative zoom coefficient by accumulating, for each line, a decimal portion of the cumulative zoom coefficient to a first numerical value corresponding to the zoom coefficient. An accumulator accumulates, for each line, a second numerical value corresponding to an integer portion of the cumulative zoom coefficient. A reader reads out image data in a line corresponding to an accumulated value of the accumulator. A first setter sets N-times the zoom coefficient to the first numerical value in the non-interlaced-scanning, and sets the zoom coefficient to the first numerical value in the interlaced-scanning. A second setter sets an integer portion to the second numerical value in the non-interlaced-scanning, and sets N-times the integer portion to the second numerical value in the interlaced-scanning. |
