Software or Hardware input to Image Acquisition Toolbox

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.

Answer 1

[Mark Jones]

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

Answer 2

[Image Analyst]

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.