Re: Blob Analysis

--- In OpenCV@xxxxxxxxxxxxxxx, "rickypetit" <rborras@...> wrote:
>
> --- In OpenCV@xxxxxxxxxxxxxxx, "ivanhan83" <exxonvald@> wrote:
> >
> > Hi everyone,
> > 
> > Using CvCam and after some filtering, I've obtained a binary 
image 
> > (black BG, white blobs). How do I go about identifying these 
blobs? 
> > Basically, I just want to bound each blob with a rectangle. 
What's an 
> > effective way to do it? I've tried cvFindContour, the blob 
library, 
> > etc, and they all seem to take quite a bit of processing time (I 
could 
> > also be implementing it wrongly). I've even tried flood-filling 
(i.e. 
> > identify a white pixel and do BFS until you get all the blob, but 
> > that's slow too). Would really appreciate it if someone could 
point me 
> > in the right direction. Thanks a bunch!
> > 
> > Ivan
> >
> How many images per second do you have to process? Using the blob
> library we can process up to 15 images per second (12 of 640x480 
and 3
> of 1024 * 640 ) (extracting blobs and doing many other things ). We
> use the library in release version, compiled using the Intel 
Compiler
> (v8.0) (the performance increases a lot using Intel's compiler).
> 
> Hope it helps, 
> 
> Ricard
>

Which function to use if we want to filter small blobs in that 
blobslib?Can we modify or add some new functions to the blobslib?The 
comments for the functions are in french,can't very understand it.-_-!









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