| 摘要 |
<p>PURPOSE:To make a target image easy to see, by switching between ordinary display and accentuated display. CONSTITUTION:When switches 41a and 41b is connected to the ordinary display position, namely, to the contact U, the contact U is connected to a display 16 through OR circuits 43a and 43b. So, when the values of digital signals read out of a main memory 17, that is, the higher-order bit output ray 42a and the lower-order bit output ray 42b are (0, 0), (0, 1), (1, 0) and (1, 1) respectively, they are displayed 16 as blue, green, yellow and red, for instance. When the switches 41a and 41b are connected to the accentuated display position, namely, the contact E, the output signal of the main memory 17 below the specified value, for example, below (0, 1) is converted to a digital signal (0, 0) for background color while that above the specified value, for example above (1, 0) is converted into a digital signal (1, 1) for a color distinctly against the background color (blue), for instance, red while being extended by one pixel. This eliminates small dot images distributed in a large number to present the target image more distinct against the background color and larger in the size, thereby making the target image easy to see.</p> |
