[Insight-users] Better separation of peaks

Mon, 1 Mar 2004 12:04:57 -0800

This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.

------_=_NextPart_001_01C3FFC8.787D9406
Content-Type: text/plain

Hi Luis,
I have a set of T2 weighted brain MRI images. I would like to separate
background from tissue. In some cases, there are clearly two peaks in the
histogram whereas in other cases, I cannot clearly distinguish two peaks
[the histogram looks quite uniform], however, when I examine the image, the
tissue is quite well separated from the background. I was wondering if you
could recommend any steps to actually make the histogram more "peaky" so
that I could use some histogram parsing techniques to separate background
from tissue.

Thanks
Radhika

-----------------------------------------------------  
Confidentiality Notice. 
This email message is for the sole use of the intended recipient(s) and may
contain confidential and privileged information. Any unauthorized review,
use, disclosure or distribution is prohibited. If you are not the intended
recipient, please contact the sender by reply email and destroy all copies
of the original message. If you are the intended recipient, please be
advised that the content of this message is subject to access, review and
disclosure by the sender's Email System Administrator.

------_=_NextPart_001_01C3FFC8.787D9406
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2656.87">
<TITLE>Better separation of peaks</TITLE>
</HEAD>
<BODY>

Hi Luis,
 I have a set of T2 weighted brain MRI images. I =
would like to separate background from tissue. In some cases, there are =
clearly two peaks in the histogram whereas in other cases, I cannot =
clearly distinguish two peaks [the histogram looks quite uniform], =
however, when I examine the image, the tissue is quite well separated =
from the background. I was wondering if you could recommend any steps =
to actually make the histogram more &quot;peaky&quot; so that I could =
use some histogram parsing techniques to separate background from =
tissue.

<P><FONT SIZE=3D2>Thanks</FONT>
<BR><FONT SIZE=3D2>Radhika</FONT>
</P>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
 -----------------------------------------------------&nbsp; =

 Confidentiality Notice. 
 This email message is for the sole use of the =
intended recipient(s) and may contain confidential and privileged =
information. Any unauthorized review, use, disclosure or distribution =
is prohibited. If you are not the intended recipient, please contact =
the sender by reply email and destroy all copies of the original =
message. If you are the intended recipient, please be advised that the =
content of this message is subject to access, review and disclosure by =
the sender's Email System Administrator.

</BODY>
</HTML>
------_=_NextPart_001_01C3FFC8.787D9406--