MATLAB: Can we use the DeviceName instead of adaptorName to connect a camera to Matlab

image acquisition

In my project, I am using 3 different cameras and order of these cameras are important in the code. Wondering if it is possible using the DeviceName info. instead of the adaptorName info. to determine the specific camera.

Best Answer

I am guessing you are using the Image Acquisition interface; http://www.mathworks.com/help/imaq/imaqhwinfo.html
targetname = 'IBM PC Camera';    %for example
summaryinfo = imaqhwinfo();
for adapter = summaryinfo.InstalledAdaptors
  adaptinfo = imaqhwinfo(adapter);
  devids = adaptinfo.DeviceIDs;    %oddly, a cell array
  devinfo = adaptinfo.DeviceInfo;  %structure array
  found_target = false;
  for K = 1 : length(devinfo)
    devname = devinfo(K).DeviceName;
    if strcmpi(devname, targetname)
      targetid = devids{K};        %remember it is a cell array
      found_target = true;
      break;
    end
  end
  if found_target; break; end
end
if ~found_target
  fprintf('Could not find device "%s\n', targetname);
  error('Device not found');
end
obj = videoinput(adapter, targetid);
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