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Re: Help on EDGE_DOG [message #70868] Fri, 14 May 2010 09:47
bala murugan is currently offline  bala murugan
Messages: 23
Registered: April 2010
Junior Member
On May 14, 10:20 am, Chris W <cwood1...@gmail.com> wrote:
> On May 14, 10:59 am, bala murugan <bala2...@gmail.com> wrote:
>
>
>
>
>
>> On May 13, 1:58 pm, wlandsman <wlands...@gmail.com> wrote:
>
>>> On May 13, 2:52 pm, bala murugan <bala2...@gmail.com> wrote:
>
>>>> Hey guys!
>
>>>> Can anybody explain me the EDGE_DOG function and its arguments?
>
>>>> Thanks in advance :)
>
>>> Did you look at the HELP file?
>
>>> http://idlastro.gsfc.nasa.gov/idl_html_help/EDGE_DOG.html
>
>>> --Wayne
>
>> Yes, I did but could not understand a few things back then. But thanks
>> anyways....
>
>> Does anybody have a IDL routine that is used to segment an image by
>> region grow method?
>
> how about region_grow()?http://idlastro.gsfc.nasa.gov/idl_html_help/RE GION_GROW.html

Thanks.... I have a few question in that IDL routine

I dont understand the following two lines. Can you please explain why
we are using this?

x = FINDGEN(16*16) MOD 16 + 276.
y = LINDGEN(16*16) / 16 + 254.



I undertand that we are creating a floating point array and long
integer array. But why are we doing so?
Re: Help on EDGE_DOG [message #70869 is a reply to message #70868] Fri, 14 May 2010 09:20 Go to previous message
Chris W is currently offline  Chris W
Messages: 12
Registered: May 2007
Junior Member
On May 14, 10:59 am, bala murugan <bala2...@gmail.com> wrote:
> On May 13, 1:58 pm, wlandsman <wlands...@gmail.com> wrote:
>
>> On May 13, 2:52 pm, bala murugan <bala2...@gmail.com> wrote:
>
>>> Hey guys!
>
>>> Can anybody explain me the EDGE_DOG function and its arguments?
>
>>> Thanks in advance :)
>
>> Did you look at the HELP file?
>
>> http://idlastro.gsfc.nasa.gov/idl_html_help/EDGE_DOG.html
>
>> --Wayne
>
> Yes, I did but could not understand a few things back then. But thanks
> anyways....
>
> Does anybody have a IDL routine that is used to segment an image by
> region grow method?

how about region_grow()?
http://idlastro.gsfc.nasa.gov/idl_html_help/REGION_GROW.html
Re: Help on EDGE_DOG [message #70870 is a reply to message #70869] Fri, 14 May 2010 08:59 Go to previous message
bala murugan is currently offline  bala murugan
Messages: 23
Registered: April 2010
Junior Member
On May 13, 1:58 pm, wlandsman <wlands...@gmail.com> wrote:
> On May 13, 2:52 pm, bala murugan <bala2...@gmail.com> wrote:
>
>> Hey guys!
>
>> Can anybody explain me the EDGE_DOG function and its arguments?
>
>> Thanks in advance :)
>
> Did you look at the HELP file?
>
> http://idlastro.gsfc.nasa.gov/idl_html_help/EDGE_DOG.html
>
> --Wayne

Yes, I did but could not understand a few things back then. But thanks
anyways....

Does anybody have a IDL routine that is used to segment an image by
region grow method?
Re: Help on EDGE_DOG [message #70887 is a reply to message #70870] Thu, 13 May 2010 12:58 Go to previous message
wlandsman is currently offline  wlandsman
Messages: 743
Registered: June 2000
Senior Member
On May 13, 2:52 pm, bala murugan <bala2...@gmail.com> wrote:
> Hey guys!
>
> Can anybody explain me the EDGE_DOG function and its arguments?
>
> Thanks in advance :)

Did you look at the HELP file?

http://idlastro.gsfc.nasa.gov/idl_html_help/EDGE_DOG.html

--Wayne
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