I have a thresholded image with most of the image
intensities = 0 (background/black) and a few = 1
(foreground/white).
The white pixels are clumped together in an arbitrary shape
(could be circular or square or any other shape) and there
are several such shapes.
Say I have two or more such clumps or blobs (each blob is
surrounded by black pixels), how would I identify these
blobs?
Right now, I have code that finds ALL the white pixels in a
binary image. However, if I try to assign a "centroid" by
calculating the mean values of all x and y direction white
pixels, I get just one centroid. What I want is to identify
these blobs seperately and obtain a centroid for each of
them seperately.
I also want to assign them "identities", say blob1, blob2
and blob3.
Any suggestions on how I can go about accomplishing this?
(at least the initial part)
"Ross " <ross.nospam.kozz@yahoo.com> wrote in message
<fnh99f$mmn$1@fred.mathworks.com>...
> I have a thresholded image with most of the image
> intensities = 0 (background/black) and a few = 1
> (foreground/white).
>
> The white pixels are clumped together in an arbitrary shape
> (could be circular or square or any other shape) and there
> are several such shapes.
>
> Say I have two or more such clumps or blobs (each blob is
> surrounded by black pixels), how would I identify these
> blobs?
>
> Right now, I have code that finds ALL the white pixels in a
> binary image. However, if I try to assign a "centroid" by
> calculating the mean values of all x and y direction white
> pixels, I get just one centroid. What I want is to identify
> these blobs seperately and obtain a centroid for each of
> them seperately.
>
> I also want to assign them "identities", say blob1, blob2
> and blob3.
>
> Any suggestions on how I can go about accomplishing this?
> (at least the initial part)
>
> Thanks
"Ross " <ross.nospam.kozz@yahoo.com> wrote in message
<fnh99f$mmn$1@fred.mathworks.com>...
> I have a thresholded image with most of the image
> intensities = 0 (background/black) and a few = 1
> (foreground/white).
>
> The white pixels are clumped together in an arbitrary
shape
> (could be circular or square or any other shape) and
there
> are several such shapes.
>
> Say I have two or more such clumps or blobs (each blob
is
> surrounded by black pixels), how would I identify these
> blobs?
NOTICE: Any content you submit to MATLAB Central, including personal information, is not subject to the protections which may be afforded information collected under other sections of The MathWorks, Inc. Web site. You are entirely responsible for
all content that you upload, post, e-mail, transmit or otherwise make available via MATLAB Central. The MathWorks does not control the content posted by visitors to MATLAB Central and, does not guarantee the accuracy, integrity, or quality of such content.
Under no circumstances will The MathWorks be liable in any way for any content not authored by The MathWorks, or any loss or damage of any kind incurred as a result of the use of any content posted, e-mailed, transmitted or otherwise made available
via MATLAB Central.
Read the complete Disclaimer prior to use.
Feed for this Thread
E-mail this page to a colleague