| 摘要 |
<p>Apparatus for displaying an image defined by digital data representing the colour content of the pixels of the image comprises a monitor (1); a first store (3) for storing digital data representing an image at low resolution and a second store (4) for storing digital data representing a magnified portion of the image at high resolution. A microcomputer (2) is connected to the stores (3,4) and to the monitor (1) and an indicator assembly (6,7) is actuable by an operator to select an area of an image displayed by the monitor (1). The microcomputer (2) is responsive to a "magnify" signal from the indicator assembly (6,7) to cause the monitor (1) to display a portion of the selected after magnification, the portion being displayed within the selected area. The microcomputer suppresses pixels of the originally displayed image within the remaining portion of the selected area, the degree of magnification being such that the magnified portion substantially fills the selected area.</p> |
