Video Preview Window Troubleshooting

When previewing the video stream, if you encounter a problem, try one of the following solutions.

Problem

Possible Solutions

Video Preview window stops running.

  • Close the preview window and reopen it.

  • Verify that your image acquisition device is working properly. Close MATLAB® and run the application that came with your device.

  • Make sure no other application is using the device.

Video Preview window displays blank, gray window.

  • Close the preview window and reopen it.

  • Check memory usage. It is possible that there is not enough memory available for the incoming image data. To increase the memory allocation, use the imaqmem function and specify a higher value for the FrameMemoryLimit.

  • Make sure no other application is using the device.

Video Preview window displays dropped frames message.

  • Close the preview window and reopen it.

  • Check memory usage. It is possible that there is not enough memory available for the incoming image data. To increase the memory allocation, use the imaqmem function and specify a higher value for the FrameMemoryLimit.

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