[Insight-users] Connected Component Image Filter

Radhika Sivaramakrishna radhika . sivaramakrishna at synarc . com
Mon, 15 Dec 2003 11:02:02 -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_01C3C33D.ECA1EE44
Content-Type: text/plain

Hi,
I am using the connected component image filter and I have the following
questions:
 
1)       I am getting a warning message that the number of labels exceeds
the number of available labels for the output type. When I use the
RelabelConnectedComponent filter and check number of objects, it reports 38,
so I do not understand what is exceeded.
2)       Does the connected component image Filter basically perform a type
of pixel aggregation to accumulate the pixels for each separate object? In
case of a 2D image, does it use a 4-connected neighbor or 8-connected
neighbor. Is this a parameter we can set?
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_01C3C33D.ECA1EE44
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable

<html xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns=3D"http://www . w3 . org/TR/REC-html40">

<head>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3DUS-ASCII">


<meta name=3DProgId content=3DWord.Document>
<meta name=3DGenerator content=3D"Microsoft Word 10">
<meta name=3DOriginator content=3D"Microsoft Word 10">
<link rel=3DFile-List href=3D"cid:filelist . xml at 01C3C2FA . DE750790">
<!--[if gte mso 9]><xml>
 <o:OfficeDocumentSettings>
  <o:DoNotRelyOnCSS/>
 </o:OfficeDocumentSettings>
</xml><![endif]--><!--[if gte mso 9]><xml>
 <w:WordDocument>
  <w:SpellingState>Clean</w:SpellingState>
  <w:GrammarState>Clean</w:GrammarState>
  <w:DocumentKind>DocumentEmail</w:DocumentKind>
  <w:EnvelopeVis/>
  <w:Compatibility>
   <w:BreakWrappedTables/>
   <w:SnapToGridInCell/>
   <w:WrapTextWithPunct/>
   <w:UseAsianBreakRules/>
  </w:Compatibility>
  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
 </w:WordDocument>
</xml><![endif]-->
<style>
<!--
 /* Style Definitions */
 p.MsoNormal, li.MsoNormal, div.MsoNormal
	{mso-style-parent:"";
	margin:0in;
	margin-bottom:.0001pt;
	mso-pagination:widow-orphan;
	font-size:12.0pt;
	font-family:"Times New Roman";
	mso-fareast-font-family:"Times New Roman";}
a:link, span.MsoHyperlink
	{color:blue;
	text-decoration:underline;
	text-underline:single;}
a:visited, span.MsoHyperlinkFollowed
	{color:purple;
	text-decoration:underline;
	text-underline:single;}
span.EmailStyle17
	{mso-style-type:personal-compose;
	mso-style-noshow:yes;
	mso-ansi-font-size:10.0pt;
	mso-bidi-font-size:10.0pt;
	font-family:Arial;
	mso-ascii-font-family:Arial;
	mso-hansi-font-family:Arial;
	mso-bidi-font-family:Arial;
	color:windowtext;}
span.SpellE
	{mso-style-name:"";
	mso-spl-e:yes;}
span.GramE
	{mso-style-name:"";
	mso-gram-e:yes;}
@page Section1
	{size:8.5in 11.0in;
	margin:1.0in 1.25in 1.0in 1.25in;
	mso-header-margin:.5in;
	mso-footer-margin:.5in;
	mso-paper-source:0;}
div.Section1
	{page:Section1;}
 /* List Definitions */
 @list l0
	{mso-list-id:668021367;
	mso-list-type:hybrid;
	mso-list-template-ids:-560854128 67698705 67698713 67698715 67698703 =
67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
	{mso-level-text:"%1\)";
	mso-level-tab-stop:.5in;
	mso-level-number-position:left;
	text-indent:-.25in;}
ol
	{margin-bottom:0in;}
ul
	{margin-bottom:0in;}
-->
</style>
<!--[if gte mso 10]>
<style>
 /* Style Definitions */=20
 table.MsoNormalTable
	{mso-style-name:"Table Normal";
	mso-tstyle-rowband-size:0;
	mso-tstyle-colband-size:0;
	mso-style-noshow:yes;
	mso-style-parent:"";
	mso-padding-alt:0in 5.4pt 0in 5.4pt;
	mso-para-margin:0in;
	mso-para-margin-bottom:.0001pt;
	mso-pagination:widow-orphan;
	font-size:10.0pt;
	font-family:"Times New Roman";}
</style>
<![endif]-->
</head>

<body lang=3DEN-US link=3Dblue vlink=3Dpurple =
style=3D'tab-interval:.5in'>

<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Hi,<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I am using the connected component image filter and =
I have
the following questions:<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal =
style=3D'margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;mso-fareast-font-family:Aria=
l'><span
style=3D'mso-list:Ignore'>1)<font size=3D1 face=3D"Times New =
Roman"><span
style=3D'font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp; </span></font></span></span></font><![endif]><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>I am getting
a warning message that the number of labels exceeds the number of =
available
labels for the output type. When I use the <span =
class=3DSpellE>RelabelConnectedComponent</span>
filter and check number of objects, it reports 38, so I do not =
understand what is
exceeded.<o:p></o:p></span></font></p>

<p class=3DMsoNormal =
style=3D'margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1;
tab-stops:list .5in'><![if !supportLists]><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial;mso-fareast-font-family:Aria=
l'><span
style=3D'mso-list:Ignore'>2)<font size=3D1 face=3D"Times New =
Roman"><span
style=3D'font:7.0pt "Times New =
Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></font></span></span></font><![endif]><font
size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;font-family:Arial'>Does the
connected component image Filter basically perform a type of pixel =
aggregation
to accumulate the pixels for each separate object? In case of a 2D =
image, does
it use a 4-connected neighbor or 8-connected neighbor. Is this a =
parameter we
can set?<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Radhika<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

</div>

</body>

</html>

<P><FONT SIZE=3D2 FACE=3D"Arial">                                       =
              </FONT></P>

<P><FONT SIZE=3D2 =
FACE=3D"Arial">-----------------------------------------------------  =
</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Confidentiality Notice. </FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">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.</FONT></P>

------_=_NextPart_001_01C3C33D.ECA1EE44--