User manual

Small Vision System User Manual 41
The imager width is the number of sels (sensor elements) in each line of the imager. Again, this can
be found in the imager specifications. If these are not available, just use the image width as it comes from
the framegrabber, e.g., for NTSC video it is 640.
The framegrabber width is the width of the image output by the framegrabber, in pixels. Typically it
will be an analog NTSC signal, which is 640 pixels. For digital imagers, such as the MEGA-D, the image
size in sels and the framegrabber width are the same.