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Re: linear-space image converted to log-space [message #58839 is a reply to message #58838]

Sat, 23 February 2008 18:04

jkj
Messages: 48
Registered: April 2007

Member

>
> 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 portion of the image so that
portions 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.

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[Message index]

		Re: linear-space image converted to log-space By: jkj on Sat, 23 February 2008 20:46
		Re: linear-space image converted to log-space By: jkj on Sat, 23 February 2008 19:33
		Re: linear-space image converted to log-space By: ben.bighair on Sat, 23 February 2008 18:26
		Re: linear-space image converted to log-space By: jkj on Sat, 23 February 2008 18:04
		Re: linear-space image converted to log-space By: Vince Hradil on Sat, 23 February 2008 15:32

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