On Linux, you can capture video directly into nip2 provided that your capture card is compatible with v4l. You may need to adjust the nip2 video settings. These settings can be found under the headings Video for linux and General video capture in the Preferences window, which can be accessed by selecting Edit / Preferences from the main nip2 window. The default settings, see Figure 3.1, are for the Hauppauge PCI capture card and should be changed as required.
Once you have set up your card, select Tasks / Capture / Capture Video Frame to create a new video object, which will appear as a still image in your current selected column. The captured image can be updated by opening the image in a viewing window and then pressing Ctrl-C (a shortcut for File / Recalculate Image).
You can create more than one video object: which can help you to get the overlaps right if you have two open at once (one showing the previous grab) when you are moving the camera around.