User`s guide

5 Acqu iring Image Data

Ve rify that the o bject has not acquired any frames.

get(vid,'FramesAcquired')

ans =

2 Configure properties — To use an immediate trigger, you do not have to

configure the

TriggerType property because 'immediate' is the default

trigger type. You can verify this by using the

triggerconfig function to

view the current trigger configuration or by viewing the video input object’s

properties.

triggerconfig(vid)

ans =

TriggerType: 'immed iate '

TriggerCondition: 'none'

TriggerSource: 'no ne'

This example sets the value of the FramesPerTrigger property to 5.(The

default is 10 frames per trigger.)

set(vid,'FramesPerTrigger',5)

3 Start the image acquisition object —Callthestart function to start

the i m age acq uisition object. By defa ult, the object executes an immediate

trigger and acquires five frames of data, logging the data to a memory

buffer. After logging the specified number of frames, the object stops

running.

start(vid)

To verify that the object acquired data, view the value of the

FramesAcquired property. The object updates the value of this property as

it acquires data.

vid.FramesAcquired

ans =

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