User manual

Small Vision System User Manual 15
desirable for minimizing motion blur, and it may be more convenient to increase gain while exposure is
not at a maximum.
The values of exposure, gain, brightness, and contrast are all represented as a percent.
The colorized version of the MEGA-D digital camera can input color images, and the color balance
can be adjusted manually using the red/blue differential gain. More information about color processing is
in Section 2.1.12.
2.1.10 Subwindowing
The MEGA-D digital stereo head can send to the host computer just a portion, or subwindow, of the
stereo image. For example, if the MEGA-D is in x2 sampling mode (full-size image is 640x320), and the
image size is chosen to be 320x240, then smallv will input only a 320x240 subwindow of the full
image. Figure 2-5 shows two of these subwindows, and the original full-size image.
Figure 2-5 Two 320x240 subwindows (bottom) of a 640x480 image (top).