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Re: Segfault when smoothing image [message #69776 is a reply to message #69773]

Sun, 14 February 2010 09:51

cgguido
Messages: 195
Registered: August 2005

Senior Member

What is your input for all this, a bunch of x,y coords? And you want a
certain value at each coord in a "fake" 2200x2200 iamge?
Could you post examples of input and especially the code you are
using?

--Gianguido

On Feb 14, 4:54 am, thoeger <lusepus...@gmail.com> wrote:
> Hello newsgfroup;
>
> I hope this question isn't too basic.
>
> As part of my master thesis in astronomy, I have to make an image
> consisting of 2200x2200 pixels having the value zero except certain
> pixels, representing each the center of tan astronomical objects,
> having the value one. The goal is to get an idea of the number density
> of objects in the field, so I try to do a gaussian smoothing using
> the filter_image function, but end up with a segfault and IDL
> quitting due to floating underflow. (To be precise, this is GDL on my
> laptop. True IDL on the university computers just stalls
> indefinitely). So it seems I'm doing something wrong here. Does anyone
> have an idea how to implement the smoothing, if not by filter_image?

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[Message index]

		Re: Segfault when smoothing image By: thoeger on Mon, 15 February 2010 07:08
		Re: Segfault when smoothing image By: Jeremy Bailin on Mon, 15 February 2010 04:36
		Re: Segfault when smoothing image By: thoeger on Mon, 15 February 2010 03:05
		Re: Segfault when smoothing image By: cgguido on Sun, 14 February 2010 09:51
		Re: Segfault when smoothing image By: wlandsman on Mon, 15 February 2010 09:45

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