Problem compile imaq.VideoDevice to Standard Alone(.exe)

Question

williamx 2015-8-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/234283-problem-compile-imaq-videodevice-to-standard-alone-exe

编辑： williamx 2015-8-18

采纳的回答： Madhura Suresh

在 MATLAB Online 中打开

I'm able to run the GUI code in MATLAB but when compiled to .exe and run it

I got the error Undefined function or variable 'imaqslgate'

I suppose Image Acquisition Toolbox is able to compile to .exe right?

Using MATLAB R2015a and build in webcam

Thanks.

 Code
 function pushbutton1_Callback(hObject, eventdata, handles)
  vid  = imaq.VideoDevice('winvideo', 1, 'MJPG_640x480', 'ROI', [1 1 640 480], ...
                           'ReturnedColorSpace', 'rgb', ...
                           'DeviceProperties.Brightness', 0, ...
                           'DeviceProperties.Sharpness', 15);          
videoPlayer = vision.VideoPlayer('Name','Camera Preview','Position',[510 320 660 520]);
while(1)
     videoFrame = step(vid);                      
     imshow(videoFrame,handles.axes1)
     step(videoPlayer,videoFrame);
end
 Error
   Undefined function or variable 'imaqslgate'.
Error in imaq.internal.Utility.getDeviceList (line 26)
Error in imaq.internal.VideoDeviceInternal (line 238)
Error in imaq.VideoDevice (line 270)
Error in test>pushbutton1_Callback (line 80)
Error in gui_mainfcn (line 95)
Error in test (line 42)
Error in @(hObject,eventdata)test('pushbutton1_Callback',hObject,eventdata,guida
ta(hObject))
Error while evaluating UIControl Callback

2 个评论
显示无隐藏无

Walter Roberson 2015-8-17

I do not know why you are getting the imaqslgate problem, but why are you using both imshow() for the image and using videoPlayer to display the image?

williamx 2015-8-17

编辑：williamx 2015-8-17

Imshow() To display video on the gui axes. Which I will do some object detection and display on the axes. This is just a simplified code.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Madhura Suresh 2015-8-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/234283-problem-compile-imaq-videodevice-to-standard-alone-exe#answer_189649

Hi William,

Check this bug report out:

https://www.mathworks.com/support/bugreports/1162560

There is also a workaround.

Thanks, Madhura

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 2

Madhura Suresh 2015-8-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/234283-problem-compile-imaq-videodevice-to-standard-alone-exe#answer_189565

How are you running the executable? Within MATLAB using the ! operator, or double clicking it outside MATLAB? Either way, can you close MATLAB (if its running) or run IMAQRESET in MATLAB before running the exe? Just to make sure that the hardware is not in use.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

williamx 2015-8-18

编辑：williamx 2015-8-18

Well i tried running the executable without MATLAB running and also IMAQRESET before closing MATLAB. Thank you anyway. Hope i can solve it or someone can provide me a simple executable with just 1 button to enable my camera.

请先登录，再进行评论。