[Insight-users] How to use HoughTransform2DCirclesImageFilter?
CSPL
hyd2_affable at sancharnet.in
Sat, 7 Feb 2004 18:54:57 +0530
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Hello,
I am using HoughTransform2DCirclesImageFilter to identify the number of =
circles in the image. I am not getting how to use this filter exactly. I =
have the following doubts.
What is the exact use of SetNumberOfCircles function? When I am giving =
input to this function its drawing that many number of circles, even =
though input image does not contain that many circles.
What is Houghmap? After getting the HoughFilter output to an =
accumulator, it is not used anywhere, what does it contains.
What is the use of SetDiskRadiusRatio, SetSweepAngle, SetSigmaGradient, =
SetVariance functions? I am not able to follow about this functions =
information given in itk documentation.
Can anyone give me some more information about this functions.
Regards,=20
sandhya
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<DIV><FONT face=3DArial size=3D2>Hello,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>I am using =
HoughTransform2DCirclesImageFilter to=20
identify the number of circles in the image. I am not getting how to use =
this=20
filter exactly. I have the following doubts.<BR> What is the exact =
use of=20
SetNumberOfCircles function? When I am giving input to this function its =
drawing=20
that many number of circles, even though input image does not contain =
that many=20
circles.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2> What is Houghmap? After getting =
the=20
HoughFilter output to an accumulator, it is not used anywhere, what does =
it=20
contains.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2> What is the use of =
SetDiskRadiusRatio,=20
SetSweepAngle, SetSigmaGradient, SetVariance functions? I am not able to =
follow=20
about this functions information given in itk documentation.<BR>Can =
anyone give=20
me some more information about this functions.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Regards, =
<BR> =20
sandhya</FONT></DIV></BODY></HTML>
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