the background subtraction
in [Matlab]
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From: sandra M on 25 Apr 2010 10:09 hi all, plz if any one could help me as i want to remove the background of sign language image. Regards
From: ImageAnalyst on 25 Apr 2010 10:28 On Apr 25, 10:09 am, "sandra M" <comm_wil...(a)yahoo.com> wrote: > hi all, > plz if any one could help me as i want to remove the background of sign language image. > Regards -------------------------------------- Where did you post your image?
From: sandra M on 25 Apr 2010 10:50 ImageAnalyst <imageanalyst(a)mailinator.com> wrote in message <a23d965d-b9e1-4195-8ffd-b98307e6a880(a)y30g2000yqh.googlegroups.com>... > On Apr 25, 10:09 am, "sandra M" <comm_wil...(a)yahoo.com> wrote: > > hi all, > > plz if any one could help me as i want to remove the background of sign language image. > > Regards > > -------------------------------------- > Where did you post your image? it is the link to the image http://drop.io/imgjrfr the project i work on is to recognize the sign language alphabet ,now after i made the database , i want to convert all colored backgrounds into pure black ones to deal finally with one color for the background, i need an automated matlab code to do that many thanks
From: ImageAnalyst on 25 Apr 2010 12:52 This is demonstrated in my simple color detection macro. http://www.mathworks.com/matlabcentral/fileexchange/26420-simplecolordetection You simply need to change the thresholds to find your green background instead of the red, then invert the mask since you want to zero out the color instead of keeping it like I did. Problems? Post your code back here.
From: sandra M on 25 Apr 2010 16:46
ImageAnalyst <imageanalyst(a)mailinator.com> wrote in message <53878240-abad-4cda-af16-a218c80ec1af(a)y21g2000vbf.googlegroups.com>... > This is demonstrated in my simple color detection macro. > http://www.mathworks.com/matlabcentral/fileexchange/26420-simplecolordetection > > You simply need to change the thresholds to find your green background > instead of the red, then invert the mask since you want to zero out > the color instead of keeping it like I did. Problems? Post your code > back here. thanks alot for ur help, i tried ur code just now, but the problem is that it will be assumed that i don't know the background color (in my database i take images with green, blue , violet and not pure black backgrounds) and i want to replace it with a pure black one as i am interested in the handshape only without other effects |