User`s guide

Saving Image Acquisition Objects
5-27
Saving Image Acquisition Objects
In this section...
“Using the save Command” on page 5-27
“Using the obj2mfile Command” on page 5-27
Using the save Command
You can save a video input object to a MAT-file just as you would any workspace variable
by using the save command. This example saves the video input object vid to the MAT-
file myvid.mat.
save myvid vid
When you save a video input object, all the video source objects associated with the video
input object are also saved.
To load an image acquisition object that was saved to a MAT-file into the MATLAB
workspace, use the load command. For example, to load vid from MAT-file myvid.mat,
use
load myvid
Note The values of read-only properties are not saved. When you load an image
acquisition object into the MATLAB workspace, read-only properties revert to their
default values. To determine if a property is read only, use the propinfo function or
read the property reference page.
Using the obj2mfile Command
Another way to save a video input object is to create an M-file that contains the set of
commands used to create the video input object and configure its properties. You can use
the obj2mfile function to create such an M-file. When you execute the M-file, it can
create a new video input object or reuses an existing video input object, if one exists that
has the same video format and adaptor.