From: "Milton Aupperle" <milton@outcastsoft.com>

Date: September 6, 2005 1:34:44 PM MDT

To: Astro_IIDC@yahoogroups.com

Subject: Old Aristarchus VS Stretched Aristarchus Comparion

Hi Folks;

I was testing out the new image processing module over the weekend in

the Astro IIDC beta version for DSO's and thought it might be

interesting to see what one can do with it with lunar images,

especially along the terminator where contrast can be extreme.

Compare the original "Aristarchus_050420_MJA.jpg" to the new

streteched version "Aristarchus_050420_MJA_Stretched.jpg" in the Lunar

File section. A lot of hidden detail is now visible, especially the rills.

Using linear level adjustments to bring out the dark areas usually

wipes out the bright areas. But using the Log based curves can solve

this pretty easily.

I may have over sharpened it a little bit in Astro IIDC 2.1, but this

doesn't increase the noise level at all.

TTYL..

Milton Aupperle