[Insight-users] itkGradientRecursiveGaussianImageFilter

Tue, 8 Jan 2002 00:08:09 -0600

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Hi! I hope somebody check the problem with this class, at least I hope =
the auther could check it. It is a very basic and useful class for image =
processing and=20
I think there is a big chance that somebody will use it when they try =
itk. It seems the problem should not be too difficult to solve.
thanks
ting

    -----Original Message-----
    From: Ting Chen <chenting@graphics.cis.upenn.edu>
    To: insight-users@public.kitware.com =
<insight-users@public.kitware.com>
    Date: Friday, January 04, 2002 3:59 PM
    Subject: [Insight-users] itkGradientRecursiveGaussianImageFilter
   =20
   =20
    did anybody try to use this filter in their work. It seems to me =
that this filter do not work correctly.
    =20
    I run the itkGradientRecursiveGaussianImageFiltertest program using =
its default input. (a 8*8*8 image with a 4*4*4 cubic in it) the output =
is:
    it seems the output in z direction do make some sense, however in x =
and y direction I cannot see any clue, can anyone solve this as soon as =
possible?
    thanks
    =20
    -107374176.000000, -107374176.000000, 1.936863
    -107374176.000000, -107374176.000000, 3.221592
    -107374176.000000, -107374176.000000, 4.392718
    -107374176.000000, -107374176.000000, 5.133419
    -107374176.000000, -107374176.000000, 5.094591
    -107374176.000000, -107374176.000000, 4.170907
    -107374176.000000, -107374176.000000, 2.643576
    -107374176.000000, -107374176.000000, 1.215318
    -107374176.000000, -107374176.000000, 3.221592
    -107374176.000000, -107374176.000000, 5.358489
    -107374176.000000, -107374176.000000, 7.306427
    -107374176.000000, -107374176.000000, 8.538438
    -107374176.000000, -107374176.000000, 8.473854
    -107374176.000000, -107374176.000000, 6.937488
    -107374176.000000, -107374176.000000, 4.397072
    -107374176.000000, -107374176.000000, 2.021443
    -107374176.000000, -107374176.000000, 4.392718
    -107374176.000000, -107374176.000000, 7.306427
    -107374176.000000, -107374176.000000, 9.962490
    -107374176.000000, -107374176.000000, 11.642366
    -107374176.000000, -107374176.000000, 11.554303
    -107374176.000000, -107374176.000000, 9.459431
    -107374176.000000, -107374176.000000, 5.995513
    -107374176.000000, -107374176.000000, 2.756287
    -107374176.000000, -107374176.000000, 5.133419
    -107374176.000000, -107374176.000000, 8.538438
    -107374176.000000, -107374176.000000, 11.642366
    -107374176.000000, -107374176.000000, 13.605507
    -107374176.000000, -107374176.000000, 13.502593
    -107374176.000000, -107374176.000000, 11.054482
    -107374176.000000, -107374176.000000, 7.006478
    -107374176.000000, -107374176.000000, 3.221053
    -107374176.000000, -107374176.000000, 5.094590
    -107374176.000000, -107374176.000000, 8.473853
    -107374176.000000, -107374176.000000, 11.554303
    -107374176.000000, -107374176.000000, 13.502593
    -107374176.000000, -107374176.000000, 13.400459
    -107374176.000000, -107374176.000000, 10.970865
    -107374176.000000, -107374176.000000, 6.953480
    -107374176.000000, -107374176.000000, 3.196688
    -107374176.000000, -107374176.000000, 4.170907
    -107374176.000000, -107374176.000000, 6.937488
    -107374176.000000, -107374176.000000, 9.459432
    -107374176.000000, -107374176.000000, 11.054483
    -107374176.000000, -107374176.000000, 10.970868
    -107374176.000000, -107374176.000000, 8.981774
    -107374176.000000, -107374176.000000, 5.692768
    -107374176.000000, -107374176.000000, 2.617107
    -107374176.000000, -107374176.000000, 2.643576
    ....
    (the rest of the oupput is omitted here)
    =20
    =20

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<DIV><FONT color=3D#000000 face=3DArial size=3D2>Hi! I hope somebody =
check the problem=20
with this class, at least I hope the auther could check it. It is a very =
basic=20
and useful class for image processing and </FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>I think there is a big =
chance that=20
somebody will use it when they try itk. It seems the problem should not =
be too=20
difficult to solve.</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2>thanks</FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2></FONT><FONT =
face=3DArial=20
size=3D2>ting</FONT></DIV>
<DIV>&nbsp;</DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 solid 2px; MARGIN-LEFT: 5px; PADDING-LEFT: =
5px">
    <DIV><FONT face=3DArial size=3D2><B>-----Original =
Message-----</B><BR><B>From:=20
    </B>Ting Chen &lt;<A=20
    =
href=3D"mailto:chenting@graphics.cis.upenn.edu">chenting@graphics.cis.upe=
nn.edu</A>&gt;<BR><B>To:=20
    </B><A=20
    =
href=3D"mailto:insight-users@public.kitware.com">insight-users@public.kit=
ware.com</A>=20
    &lt;<A=20
    =
href=3D"mailto:insight-users@public.kitware.com">insight-users@public.kit=
ware.com</A>&gt;<BR><B>Date:=20
    </B>Friday, January 04, 2002 3:59 PM<BR><B>Subject: =
</B>[Insight-users]=20
    itkGradientRecursiveGaussianImageFilter<BR><BR></DIV></FONT>
    <DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2>did anybody try to =
use this=20
    filter in their work. It seems to me that this filter do not work=20
    correctly.</FONT></DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2></FONT>&nbsp;</DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2>I run the=20
    itkGradientRecursiveGaussianImageFiltertest program using its =
default input.=20
    (a 8*8*8 image with a 4*4*4 cubic in it) the output is:</FONT></DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2></FONT><FONT =
face=3DArial size=3D2>it=20
    seems the output in z direction do make some sense, however in x and =
y=20
    direction I cannot see any clue, can anyone solve this as soon as=20
    possible?</FONT></DIV>
    <DIV><FONT face=3DArial size=3D2>thanks</FONT></DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2></FONT>&nbsp;</DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2>-107374176.000000,=20
    -107374176.000000, 1.936863<BR>-107374176.000000, -107374176.000000, =

    3.221592<BR>-107374176.000000, -107374176.000000,=20
    4.392718<BR>-107374176.000000, -107374176.000000,=20
    5.133419<BR>-107374176.000000, -107374176.000000,=20
    5.094591<BR>-107374176.000000, -107374176.000000,=20
    4.170907<BR>-107374176.000000, -107374176.000000,=20
    2.643576<BR>-107374176.000000, -107374176.000000,=20
    1.215318<BR>-107374176.000000, -107374176.000000,=20
    3.221592<BR>-107374176.000000, -107374176.000000,=20
    5.358489<BR>-107374176.000000, -107374176.000000,=20
    7.306427<BR>-107374176.000000, -107374176.000000,=20
    8.538438<BR>-107374176.000000, -107374176.000000,=20
    8.473854<BR>-107374176.000000, -107374176.000000,=20
    6.937488<BR>-107374176.000000, -107374176.000000,=20
    4.397072<BR>-107374176.000000, -107374176.000000,=20
    2.021443<BR>-107374176.000000, -107374176.000000,=20
    4.392718<BR>-107374176.000000, -107374176.000000,=20
    7.306427<BR>-107374176.000000, -107374176.000000,=20
    9.962490<BR>-107374176.000000, -107374176.000000,=20
    11.642366<BR>-107374176.000000, -107374176.000000,=20
    11.554303<BR>-107374176.000000, -107374176.000000,=20
    9.459431<BR>-107374176.000000, -107374176.000000,=20
    5.995513<BR>-107374176.000000, -107374176.000000,=20
    2.756287<BR>-107374176.000000, -107374176.000000,=20
    5.133419<BR>-107374176.000000, -107374176.000000,=20
    8.538438<BR>-107374176.000000, -107374176.000000,=20
    11.642366<BR>-107374176.000000, -107374176.000000,=20
    13.605507<BR>-107374176.000000, -107374176.000000,=20
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    11.054482<BR>-107374176.000000, -107374176.000000,=20
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    2.617107<BR>-107374176.000000, -107374176.000000, =
2.643576</FONT></DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2>....</FONT></DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2></FONT><FONT =
face=3DArial=20
    size=3D2>(the rest of the oupput is omitted here)</FONT></DIV>
    <DIV><FONT color=3D#000000 face=3DArial size=3D2></FONT>&nbsp;</DIV>
    <DIV><FONT color=3D#000000 face=3DArial=20
size=3D2></FONT>&nbsp;</DIV></DIV></BLOCKQUOTE></BODY></HTML>

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