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Programming > Idl-pvware > Re: linear-spac...
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Re: linear-space image converted to log-space

by jkj <kevin@[EMAIL PROTECTED] > Feb 23, 2008 at 06:04 PM

>
> Is it not just image = alog10(image), with the proper use of finite()
> and where() to trap errors?

No [but thanks!], that would take the data into log space and leave
the same number of pixels representing a given "row/frequency" of the
data.  I need to expand the low frequency ****tion of the image so that
****tions which only received 1 pixel now are smeared out over multiple
pixels in the low freq. range.  The data itself does not change, just
the percentage of the image it receives - low frequency elements are
smeared out broadly while high frequency elements (less interesting in
this case) are highly compressed.

I suspect I should be able to do this with interpolate, so that is
what I'm trying to pencil out.
 




 6 Posts in Topic:
linear-space image converted to log-space
jkj <kevin@[EMAIL PROT  2008-02-23 14:45:07 
Re: linear-space image converted to log-space
Vince Hradil <hradilv@  2008-02-23 15:32:02 
Re: linear-space image converted to log-space
jkj <kevin@[EMAIL PROT  2008-02-23 18:04:47 
Re: linear-space image converted to log-space
"ben.bighair" &  2008-02-23 18:26:12 
Re: linear-space image converted to log-space
jkj <kevin@[EMAIL PROT  2008-02-23 19:33:36 
Re: linear-space image converted to log-space
jkj <kevin@[EMAIL PROT  2008-02-23 20:46:31 

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tan12V112 Mon Oct 13 21:06:02 CDT 2008.