Software or Hardware input to Image Acquisition Toolbox

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John
John 2011-11-18
Hi,
I have a fairly complex task to achieve. I need to import live uncompressed video from a program (X-Plane 9.70) for image processing in Matlab/SIMULINK. I have not used either the image processing toolbox, nor the image acquisition toolbox, the latter of which I do not currently have access to.
Is it possible to use the video output from the graphics card (Ie what we see on the desktop) or somehow the video output of a specific piece of software as the source for the Image Acquisition toolbox or does the input to Image Acquisition have to be from a piece of hardware?
Thank you.

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回答（2 个）

Mark Jones
Mark Jones 2011-12-19
Hi,
If you can find some software that does screen capturing to Direct Show, then quite possibly you will be able to do what you want using the 'winvideo' adaptor.
I just googled:
http://www.google.com/search?q=capture+screen+to+direct+show
and ran across:
http://www.medialooks.com/products/directshow_filters/screen_capture.html
I have not tried it, but you may want to.
Mark
Image Analyst
Image Analyst 2011-12-19
I don't think you can have MATLAB capture live video that another program is sending to the monitor for real time analysis by MATLAB. At least I don't know how to do that. I think you'd have to tell the other program to save the video out to a disk file, or have a third program (perhaps the one Mark suggested) do a screen-cam sort of capture to the disk file. Then the disk file can be opened in MATLAB with the Image Processing Toolbox, you wouldn't even need the Image Acquisition Toolbox.

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