[Insight-users] Fuzzy implementation
Yinpeng Jin
yj76 at columbia.edu
Tue, 20 Apr 2004 15:59:03 -0400
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Dear Alex:
itkSimpleFuzzyConnectednessImageFilterBase provides a template (base =
class) for the fuzzy connectedness segmentation.=20
depends on the requirement for image data and applications, the user =
might want to define their own flavor of "fuzzy affinity".
However, in ITK, we provided two examples =
"itkSimpleFuzzyConnectednessScalarImageFilter" and =
"itkSimpleFuzzyConnectednessRGBImageFilter"
which work on gray scale data and RGB color image data respectively.=20
these two classes were derived from =
itkSimpleFuzzyConnectednessImageFilterBase, and provide the implement of =
the virtual method "FuzzyAffinity"=20
inherent from itkSimpleFuzzyConnectednessImageFilterBase.=20
this following part of the code in =
itkSimpleFuzzyConnectednessImageFilterBase.=20
/** Define the fuzzy affinity function between two pixels. */
virtual double FuzzyAffinity(const PixelType, const PixelType)
{ return 0; }
is to remind the user that if they are to build their own =
FuzzyConnectedness filter, they should provide the implementation of =
this method.=20
you can look at FuzzyAffinity() in both =
"itkSimpleFuzzyConnectednessScalarImageFilter.cxx" and =
"itkSimpleFuzzyConnectednessRGBImageFilter.cxx"
to see how this method works.=20
hope this clarifies.=20
Yinpeng.
----- Original Message -----=20
From: Alex Houston=20
To: insight-users at itk.org=20
Sent: Tuesday, April 20, 2004 3:40 PM
Subject: [Insight-users] Fuzzy implementation
Hi Guys
I am tracking the implementation of simplefuzzy connectedness in ITK. =
I started from FuzzyConnectednessImageFilter.cxx
First fuzzysegmenter->Update( ) is called=20
I have reached a point where GenerateData( ) calls FIndStrongPath ( ) =
which in turn calls FuzzyAffinity( )
{ all in the itkSimpleFuzzyConnectednessImageFilterBase.txx file }
I am trying to see implementation of FuzzyAffinity()=20
it shows=20
/** Define the fuzzy affinity function between two pixels. */
virtual double FuzzyAffinity(const PixelType, const PixelType)
{ return 0; }
what does this mean, Is there a more detailed implementation.
Is it calling any another function to compute the fuzzy affinity.
I want to have look at the method which computes fuzzy affinity.
Can somebody please guide me
Thanks
Alex Houston
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Yahoo! Photos: High-quality 4x6 digital prints for 25=A2
----- Original Message -----=20
From: Alex Houston=20
To: insight-users at itk.org=20
Sent: Tuesday, April 20, 2004 3:40 PM
Subject: [Insight-users] Fuzzy implementation
Hi Guys
I am tracking the implementation of simplefuzzy connectedness in ITK. =
I started from FuzzyConnectednessImageFilter.cxx
First fuzzysegmenter->Update( ) is called=20
I have reached a point where GenerateData( ) calls FIndStrongPath ( ) =
which in turn calls FuzzyAffinity( )
{ all in the itkSimpleFuzzyConnectednessImageFilterBase.txx file }
I am trying to see implementation of FuzzyAffinity()=20
it shows=20
/** Define the fuzzy affinity function between two pixels. */
virtual double FuzzyAffinity(const PixelType, const PixelType)
{ return 0; }
what does this mean, Is there a more detailed implementation.
Is it calling any another function to compute the fuzzy affinity.
I want to have look at the method which computes fuzzy affinity.
Can somebody please guide me
Thanks
Alex Houston
-------------------------------------------------------------------------=
-----
Do you Yahoo!?
Yahoo! Photos: High-quality 4x6 digital prints for 25=A2
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<DIV><FONT face=3DArial size=3D2>Dear Alex:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial =
size=3D2>itkSimpleFuzzyConnectednessImageFilterBase provides=20
a template (base class) for the fuzzy connectedness segmentation. =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>depends on the requirement for image =
data and=20
applications, the user might want to define their own flavor of "fuzzy=20
affinity".</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>However, in ITK, we provided two =
examples=20
"itkSimpleFuzzyConnectednessScalarImageFilter" and=20
"itkSimpleFuzzyConnectednessRGBImageFilter"</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>which work on gray scale data and RGB =
color image=20
data respectively. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>these two classes were derived from=20
itkSimpleFuzzyConnectednessImageFilterBase, and provide the implement of =
the=20
virtual method "FuzzyAffinity" </FONT></DIV>
<DIV><FONT face=3DArial size=3D2>inherent from=20
itkSimpleFuzzyConnectednessImageFilterBase. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>this following part of the code in=20
itkSimpleFuzzyConnectednessImageFilterBase. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV> /** Define the fuzzy affinity function between two pixels.=20
*/<BR> virtual double FuzzyAffinity(const PixelType, const=20
PixelType)<BR> { return 0; }</DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>is to remind the user that if they are =
to build=20
their own FuzzyConnectedness filter, they should provide the =
implementation of=20
this method. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>you can look at FuzzyAffinity() in both =
"itkSimpleFuzzyConnectednessScalarImageFilter.cxx" and=20
"itkSimpleFuzzyConnectednessRGBImageFilter.cxx"</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>to see how this method works. =
</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>hope this clarifies. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Yinpeng.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dahouston_29 at yahoo.com =
href=3D"mailto:ahouston_29 at yahoo.com">Alex=20
Houston</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dinsight-users at itk.org=20
href=3D"mailto:insight-users at itk.org">insight-users at itk.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, April 20, 2004 =
3:40=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Insight-users] Fuzzy=20
implementation</DIV>
<DIV><BR></DIV>
<DIV>Hi Guys</DIV>
<DIV> </DIV>
<DIV>I am tracking the implementation of simplefuzzy connectedness in =
ITK. I=20
started from FuzzyConnectednessImageFilter.cxx</DIV>
<DIV>First fuzzysegmenter->Update( ) is called </DIV>
<DIV> </DIV>
<DIV>I have reached a point where GenerateData( ) calls =
FIndStrongPath (=20
) which in turn calls FuzzyAffinity( )</DIV>
<DIV>{ all in the itkSimpleFuzzyConnectednessImageFilterBase.txx file =
}</DIV>
<DIV> </DIV>
<DIV>I am trying to see implementation of FuzzyAffinity() </DIV>
<DIV>it shows </DIV>
<DIV> /** Define the fuzzy affinity function between two pixels.=20
*/<BR> virtual double FuzzyAffinity(const PixelType, const=20
PixelType)<BR> { return 0; }<BR></DIV>
<DIV>what does this mean, Is there a more detailed =
implementation.</DIV>
<DIV>Is it calling any another function to compute the fuzzy =
affinity.</DIV>
<DIV> </DIV>
<DIV>I want to have look at the method which computes fuzzy =
affinity.</DIV>
<DIV> </DIV>
<DIV>Can somebody please guide me</DIV>
<DIV> </DIV>
<DIV>Thanks</DIV>
<DIV>Alex Houston</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<P>
<HR SIZE=3D1>
<FONT face=3Darial size=3D-1>Do you Yahoo!?<BR>Yahoo! Photos: <A=20
=
href=3D"http://pa.yahoo.com/*http://us.rd.yahoo.com/evt=3D23765/*http://p=
hotos.yahoo.com/ph/print_splash">High-quality=20
4x6 digital prints for 25=A2</A></FONT></BLOCKQUOTE></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dahouston_29 at yahoo.com =
href=3D"mailto:ahouston_29 at yahoo.com">Alex=20
Houston</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dinsight-users at itk.org=20
href=3D"mailto:insight-users at itk.org">insight-users at itk.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, April 20, 2004 =
3:40=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Insight-users] Fuzzy=20
implementation</DIV>
<DIV><BR></DIV>
<DIV>Hi Guys</DIV>
<DIV> </DIV>
<DIV>I am tracking the implementation of simplefuzzy connectedness in =
ITK. I=20
started from FuzzyConnectednessImageFilter.cxx</DIV>
<DIV>First fuzzysegmenter->Update( ) is called </DIV>
<DIV> </DIV>
<DIV>I have reached a point where GenerateData( ) calls =
FIndStrongPath (=20
) which in turn calls FuzzyAffinity( )</DIV>
<DIV>{ all in the itkSimpleFuzzyConnectednessImageFilterBase.txx file =
}</DIV>
<DIV> </DIV>
<DIV>I am trying to see implementation of FuzzyAffinity() </DIV>
<DIV>it shows </DIV>
<DIV> /** Define the fuzzy affinity function between two pixels.=20
*/<BR> virtual double FuzzyAffinity(const PixelType, const=20
PixelType)<BR> { return 0; }<BR></DIV>
<DIV>what does this mean, Is there a more detailed =
implementation.</DIV>
<DIV>Is it calling any another function to compute the fuzzy =
affinity.</DIV>
<DIV> </DIV>
<DIV>I want to have look at the method which computes fuzzy =
affinity.</DIV>
<DIV> </DIV>
<DIV>Can somebody please guide me</DIV>
<DIV> </DIV>
<DIV>Thanks</DIV>
<DIV>Alex Houston</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<P>
<HR SIZE=3D1>
<FONT face=3Darial size=3D-1>Do you Yahoo!?<BR>Yahoo! Photos: <A=20
=
href=3D"http://pa.yahoo.com/*http://us.rd.yahoo.com/evt=3D23765/*http://p=
hotos.yahoo.com/ph/print_splash">High-quality=20
4x6 digital prints for 25=A2</A></FONT></BLOCKQUOTE></BODY></HTML>
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