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real time image processing

Message-ID:<ac35a546-a7ad-4deb-85ab-e4a2d60038e1@s9g2000prg.googlegroups.com>
Subject:

real time image processing

Date:Wed, 4 Feb 2009 18:08:14 +0100


hi
I'm interested in doing real time image processing project.for this i
use a webcam to grab and send images to matlab.i use image acquisition
toolbox but it takes long time to get images.my algorithms is:
vid = videoinput('winvideo',1);

set(vid,'FramesPerTrigger',1);
while (1)
start(vid)

data = getdata(vid);
end

but the function "start(vid)" takes 3 seconds and it is too much.i
dont know how i can decrease this time to less than 1 second.
i'd be glad if anyone could help me

sincerely yours

Message-ID:<8cdd154a-07f7-43ea-86e7-45c602ed4061@i24g2000prf.googlegroups.com>
Subject:

Re: real time image processing

Date:Wed, 4 Feb 2009 20:47:56 +0100


If you are still interested in using Matlab you might try a RoboRealm
+ Matlab combination. We just released the Matlab Mex integration
yesterday for RoboRealm where you can very quickly grab images into
Matlab from RoboRealm. Or you could also just perform the initial
analysis in RoboRealm and simply pass some of the results back to
Matlab for further processing. Either way that should help to speed up
your processing pipeline but also still allow you to use Matlab to
manipulate the final results.

You can find more about the Matlab RoboRealm API (as well as examples
in other languages) at

http://www.roborealm.com/help/API.php

The download for the Matlab Mex file is in the example API.zip file.

Enjoy!
STeven.

Message-ID:<f3534ac2-38c3-4c13-a10b-adedf33ce274@x16g2000prn.googlegroups.com>
Subject:

Re: real time image processing

Date:Thu, 5 Feb 2009 11:09:50 +0100


On Feb 4, 11:47=A0am, robore...@gmail.com wrote:
> If you are still interested in using Matlab you might try a RoboRealm
> + Matlab combination. We just released the Matlab Mex integration
> yesterday for RoboRealm where you can very quickly grab images into
> Matlab from RoboRealm. Or you could also just perform the initial
> analysis in RoboRealm and simply pass some of the results back to
> Matlab for furtherprocessing. Either way that should help to speed up
> yourprocessingpipeline but also still allow you to use Matlab to
> manipulate the final results.
>
> You can find more about the Matlab RoboRealm API (as well as examples
> in other languages) at
>
> http://www.roborealm.com/help/API.php
>
> The download for the Matlab Mex file is in the example API.zip file.
>
> Enjoy!
> STeven.

hi,thanks for your helping but i couldnt run those functions.

so i also tried to use blocks and for this i used two blocks; the
first
was image acquisition block to get images from webcam and also "video
to workspace" block but i cant combine the block file with Mfile or
workspace.
i'd be glad if you could help me


sincerely yours

Message-ID:<Cpqil.9591$PH1.6381@edtnps82>
Subject:

Re: real time image processing

Date:Thu, 5 Feb 2009 01:29:22 +0100


sinasi20@gmail.com wrote:
> hi
> I'm interested in doing real time image processing project.for this i
> use a webcam to grab and send images to matlab.i use image acquisition
> toolbox but it takes long time to get images.

Use something other than Matlab.  I was
tempted to say, use *anything* other than
Matlab but decided not to risk it.

-- 
Regards,
Martin Leese
E-mail: please@see.Web.for.e-mail.INVALID
Web: http://members.tripod.com/martin_leese/

Message-ID:<ac35a546-a7ad-4deb-85ab-e4a2d60038e1@s9g2000prg.googlegroups.com>
Subject:

real time image processing

Date:Wed, 4 Feb 2009 18:08:14 +0100


hi
I'm interested in doing real time image processing project.for this i
use a webcam to grab and send images to matlab.i use image acquisition
toolbox but it takes long time to get images.my algorithms is:
vid = videoinput('winvideo',1);

set(vid,'FramesPerTrigger',1);
while (1)
start(vid)

data = getdata(vid);
end

but the function "start(vid)" takes 3 seconds and it is too much.i
dont know how i can decrease this time to less than 1 second.
i'd be glad if anyone could help me

sincerely yours

Message-ID:<8cdd154a-07f7-43ea-86e7-45c602ed4061@i24g2000prf.googlegroups.com>
Subject:

Re: real time image processing

Date:Wed, 4 Feb 2009 20:47:56 +0100


If you are still interested in using Matlab you might try a RoboRealm
+ Matlab combination. We just released the Matlab Mex integration
yesterday for RoboRealm where you can very quickly grab images into
Matlab from RoboRealm. Or you could also just perform the initial
analysis in RoboRealm and simply pass some of the results back to
Matlab for further processing. Either way that should help to speed up
your processing pipeline but also still allow you to use Matlab to
manipulate the final results.

You can find more about the Matlab RoboRealm API (as well as examples
in other languages) at

http://www.roborealm.com/help/API.php

The download for the Matlab Mex file is in the example API.zip file.

Enjoy!
STeven.

Message-ID:<f3534ac2-38c3-4c13-a10b-adedf33ce274@x16g2000prn.googlegroups.com>
Subject:

Re: real time image processing

Date:Thu, 5 Feb 2009 11:09:50 +0100


On Feb 4, 11:47=A0am, robore...@gmail.com wrote:
> If you are still interested in using Matlab you might try a RoboRealm
> + Matlab combination. We just released the Matlab Mex integration
> yesterday for RoboRealm where you can very quickly grab images into
> Matlab from RoboRealm. Or you could also just perform the initial
> analysis in RoboRealm and simply pass some of the results back to
> Matlab for furtherprocessing. Either way that should help to speed up
> yourprocessingpipeline but also still allow you to use Matlab to
> manipulate the final results.
>
> You can find more about the Matlab RoboRealm API (as well as examples
> in other languages) at
>
> http://www.roborealm.com/help/API.php
>
> The download for the Matlab Mex file is in the example API.zip file.
>
> Enjoy!
> STeven.

hi,thanks for your helping but i couldnt run those functions.

so i also tried to use blocks and for this i used two blocks; the
first
was image acquisition block to get images from webcam and also "video
to workspace" block but i cant combine the block file with Mfile or
workspace.
i'd be glad if you could help me


sincerely yours

Message-ID:<Cpqil.9591$PH1.6381@edtnps82>
Subject:

Re: real time image processing

Date:Thu, 5 Feb 2009 01:29:22 +0100


sinasi20@gmail.com wrote:
> hi
> I'm interested in doing real time image processing project.for this i
> use a webcam to grab and send images to matlab.i use image acquisition
> toolbox but it takes long time to get images.

Use something other than Matlab.  I was
tempted to say, use *anything* other than
Matlab but decided not to risk it.

-- 
Regards,
Martin Leese
E-mail: please@see.Web.for.e-mail.INVALID
Web: http://members.tripod.com/martin_leese/