User`s guide

Bringing Image Data into the MATL AB Workspace

the frames returned by peekdata at each call. (peekdata returns frames

without removing them from the memory buffer.)

Noteinthefigurethat,atT

, only two frames have becom e available since

the last call to

peekdata.Inthiscase,p eekdata returns only the two frames,

with a warning that it returned less data than was requested.

Frames Returned by peekdata

The following example illustrates how to use pe ekdata:

1 Create an im age acquisition object — Th i s example creates a video

input object for a Data Translation image acquisition device. To run this

example on your system, use the

imaqhwinfo function to get the object

constructor for your image acquisition device and substitute that syntax

for the following code.

vid = videoinput('dt' ,1);

2 Configure properties — For this example, configure a manual trig ge r.

You must use the

triggerconfig function to specify the trigger type.

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