Data acquisition in matlab

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Vinay Pai

do you mean image processing? you just need the image processing toolbox in matlab.

If you are talking image acquisition, then you would need a daq card (try National Instruments or something similar). But you would still need the toolbox within matlab to process the data.

NOTE: This statement was prepared or accomplished by Vinay Pai in his personal capacity. The opinions expressed in this article are the author's own and do not reflect the view of the National Institutes of Health, the Department of Health and Human Services, or the United States government.

Navid Razmjooy

Dear vinay

my purpose is to give a signal from matlab to an exterior system; so can i use national instruments for this? Please name one of the simple type of such instrument if it possible. Tanx

If you are low on funds, and your computer has a serial or parallel port, you could alternatively communicate via those ports; depending obviously on what you are trying to communicate to and whether that device has a serial port/parallel port communication capability. There are several companies with DAQ hardware other than NI, though that is the best established one among them. Check with Matlab to see what all companies it can talk to; I think NI has student kits available (atleast for Labview, not sure if they have hardware on discount). Hope that helps....

Sankarasrinivasan S

Hi if you simply want to sent output from matlab u can go for Arduino boards that can be connected via USB port. For real time acquistion of video or audio signals, u have to use USB TV tuners which converts analog video/video to digital and using MATLAB Acquisition Toolbox u can take and process the data in real time.