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Why do I receive an error when I try to use my Matrox morphis with the Image Acquisition Toolbox?

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songmenglong
songmenglong on 10 Apr 2018
Edited: Khalid Mahmood on 7 Apr 2021
imaqhwinfo
ans =
InstalledAdaptors: {'dcam' 'gige' 'matrox' 'pointgrey' 'qimaging' 'winvideo'}
MATLABVersion: '8.3 (R2014a)'
ToolboxName: 'Image Acquisition Toolbox'
ToolboxVersion: '4.7 (R2014a)'
>> info=imaqhwinfo('winvideo')
info =
AdaptorDllName: 'C:\MATLAB\SupportPackages\R2014a\genericvideo\adaptor\win64\mwwinvideoimaq.dll'
AdaptorDllVersion: '4.7 (R2014a)'
AdaptorName: 'winvideo'
DeviceIDs: {[1]}
DeviceInfo: [1x1 struct]
>> dev_info=imaqhwinfo('winvideo',1)
dev_info =
DefaultFormat: 'RGB32_-1442840129x1515803904'
DeviceFileSupported: 0
DeviceName: 'Matrox Capture'
DeviceID: 1
VideoInputConstructor: 'videoinput('winvideo', 1)'
VideoDeviceConstructor: 'imaq.VideoDevice('winvideo', 1)'
SupportedFormats: {1x4 cell}
>> vid=videoinput('winvideo') error:
<<
>>
videoinput (line 391)
ROIPosition: X offset value must be less than the width specified by VideoResolution.

Answers (1)

Khalid Mahmood
Khalid Mahmood on 15 Mar 2021
Edited: Khalid Mahmood on 7 Apr 2021
Clearly format : RGB32_-1442840129x1515803904 is invalid
It must be like RGB32_720x480. But 1442840129x1515803904 is huge Resolution and beyond ROIPosition limits. Contact matlab support team for invalid supported formats.
  1 Comment
Khalid Mahmood
Khalid Mahmood on 7 Apr 2021
Moreover... There can be problem with frame grabber communication because of:
1) Frame grabber is not for windows (winvideo)
2) The driver of frme graber is not for (specific) windows
3) Error in driver code

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