Pixelink getsnapshot() producing black image

So I'm interfacing a pixelink camera with Matlab and attempting to get some kind of image data from the camera, but any image taken after a trigger is completely black. Using the getsnapshot() function also produces a black image. Strangely enough, previewing the camera video input allows me to view a normal video stream.

I suspect the issue has to do with the exposure time, though I'm unable to raise it past 2 milliseconds due to preset constraints.

vid = videoinput('pixelinkimaq', 1, 'BAYER16_2208x3000');
src = getselectedsource(vid); 

>>propinfo(src, 'Exposure')

              Type: 'double'
         Constraint: 'bounded'
    ConstraintValue: [8.4225e-05 2]
       DefaultValue: 0.1000
           ReadOnly: 'never'
     DeviceSpecific: 1
         Accessible: 1

I'm not sure how to change these settings or if I can do so in Matlab. Any ideas what else might be causing strictly black images being produced? Some more info is listed below.

Display Summary for Video Source Object:

      General Settings:
        Parent = [1x1 videoinput]
        Selected = on
        SourceName = input1
        Tag = [0x0 string]
        Type = videosource

      Device Specific Properties:
        CameraName = PixeLINK PL-B782U
        CameraSerialNumber = 782000936
        ColorTemperature = 3200
        ColorTemperatureMode = off
        Exposure = 0.06944
        ExposureMode = auto
        FlipHorizontal = off
        FlipVertical = off
        Gain = 0.00
        Gamma = 2.2
        GammaMode = off
        Gpo1Enabled = off
        Gpo1Mode = strobe
        Gpo1Parameter1 = 0
        Gpo1Parameter2 = 1e-05
        Gpo1Parameter3 = 0
        Gpo1Polarity = positive
        Gpo2Enabled = off
        Gpo2Mode = strobe
        Gpo2Parameter1 = 0
        Gpo2Parameter2 = 1e-05
        Gpo2Parameter3 = 0
        Gpo2Polarity = positive
        Gpo3Enabled = off
        Gpo3Mode = strobe
        Gpo3Parameter1 = 0
        Gpo3Parameter2 = 1e-05
        Gpo3Parameter3 = 0
        Gpo3Polarity = positive
        Gpo4Enabled = off
        Gpo4Mode = strobe
        Gpo4Parameter1 = 0
        Gpo4Parameter2 = 1e-05
        Gpo4Parameter3 = 0
        Gpo4Polarity = positive
        PixelAddressingMode = decimate
        PixelAddressingValue = 1
        Saturation = 100
        TriggerDelay = 0
        TriggerParameter = 0
        WhiteBalanceGainBlue = 1.6
        WhiteBalanceGainGreen = 1.1
        WhiteBalanceGainRed = 1
        WhiteBalanceMode = manual

Answer 1

[Matias Herrera]

I'm working with a PixeLINK PL-D722CU-T 722000034, and I ran into a similar issue.

Responding to your question, to adjust the exposure, use the following:

vid = videoinput('pixelinkimaq', 1,'BAYER16_1920x1200');
src = getselectedsource(vid);
src.Exposure = 0.07;%time in seconds

But having the same issue as you, what really helped me with that was changing the image format to Bayer8.

vid = videoinput('pixelinkimaq', 1,'BAYER8_1920x1200')

[Matias Herrera]

I almost forgot, that exposure works for me because I manually set the camera's aperture to its maximum