User`s guide

Using Properties on a VideoDevice System Object
14-11
Property Description
shows a device-specific property for VideoDevice System
object, obj.
ROI Region-of-interest for acquisition. This is set to the default
ROI value for the specified device, which is the maximum
resolution possible for the specified format. You can
change the value to change the size of the captured image.
The format is 1-based, that is, it is specified in pixels in a
1-by-4 element vector [x y width height], where x is x
offset and y is y offset.
Note that this differs from the videoinput object, the
Image Acquisition Tool, and the From Video Device block,
all of which are 0-based.
HardwareTriggering Turn hardware triggering on/off. Set this property to 'on'
to enable hardware triggering to acquire images. The
property is visible only when the device supports hardware
triggering.
TriggerConfiguration Specifies the trigger source and trigger condition before
acquisition. The triggering condition must be met via the
trigger source before a frame is acquired. This property is
visible only when HardwareTriggering is set to 'on'.
obj.TriggerConfiguration
shows the list of available hardware trigger configurations.
ReturnedColorSpace Specify the color space of the returned image. The
default value of the property depends on the device
and the video format selected. Possible values are
{rgb|grayscale|YCbCr} when the default returned color
space for the device is not grayscale. Possible values
are {rgb|grayscale|YCbCr|bayer} when the default
returned color space for the device is grayscale
obj.ReturnedColorSpace
shows the list of available color space settings.