RSS News Feedreal time image video processing
Message-ID:<f47a2345-c1a8-4650-983a-f48ba20226de@k36g2000pri.googlegroups.com>
Subject:
real time image/video processing
Date:Thu, 5 Feb 2009 11:10:53 +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 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 anyone could help me
sincerely yours
Message-ID:<498ac039@news2-rz-ap.ethz.ch>
Subject:
Re: real time image/video processing
Date:Thu, 5 Feb 2009 11:32:24 +0100
sinasi20@gmail.com wrote: > i'd be glad if anyone could help me > Maybe you did not need to open a new thread... In my personal opinion, Matlab will do for trying your algorithms, but on prerecorded videos. When you'll have the algorithms working, I suggest you move to a c/c++ implementation to reach real-time performance. Have a look at OpenCV, that should give you a good start. HTH
Message-ID:<f47a2345-c1a8-4650-983a-f48ba20226de@k36g2000pri.googlegroups.com>
Subject:
real time image/video processing
Date:Thu, 5 Feb 2009 11:10:53 +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 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 anyone could help me
sincerely yours
Message-ID:<498ac039@news2-rz-ap.ethz.ch>
Subject:
Re: real time image/video processing
Date:Thu, 5 Feb 2009 11:32:24 +0100
sinasi20@gmail.com wrote: > i'd be glad if anyone could help me > Maybe you did not need to open a new thread... In my personal opinion, Matlab will do for trying your algorithms, but on prerecorded videos. When you'll have the algorithms working, I suggest you move to a c/c++ implementation to reach real-time performance. Have a look at OpenCV, that should give you a good start. HTH