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Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 1394 Cameras
NI-IMAQ for IEEE 1394 Cameras User Manual 2-12 ni.com
Snap
The low-level snap examples set up a one-shot, single-image acquisition
and start the acquisition. The program acquires an image and processes it.
Finally, the program stops the acquisition, unconfigures the acquisition,
and closes the session.
Figure 2-5 illustrates the programming order of a low-level snap
acquisition.
Figure 2-5. Low-Level Snap Flowchart
Opens and Configures Camera
Starts Transferring Data from Camera
to Host Computer
Executes User-Specific Image
Processing
Stops Transferring Data from Camera
to Host Computer
Configures a Single-Shot, Single-
Buffer Acquisition
Closes the Camera Session
Frees IEEE 1394 Bandwidth and Memory
Resources Used by the Acquisition
Copies and Decodes Buffer
Number 0
Initialize
Configure
Start
Acquire
User-Specific Functions
Stop
Clear
Close