User manual
Table Of Contents
- Introduction
- Getting started with smallv
- Stereo Geometry
- Calibration
- API Reference – C++ Language
Small Vision System User Manual 18
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.
The placement of subwindows is controlled by the vertical (Y) and horizontal (X) offset controls in the
Subwindow dialog window; the dialog is initiated from the Subwindow… menu item in the main
window. These parameters can be changed in real time, enabling electronic panning of the live image.
Figure 2-5 Two 320x240 subwindows (bottom) of a 640x480 image (top).