LROC news and images |
LROC news and images |
Guest_Zvezdichko_* |
Jun 19 2009, 11:25 AM
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#1
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Guests |
I know it may be too early for such a thread, but an announcement has to be made.
The official website of the LROC camera is: http://lroc.sese.asu.edu/ A brief description plus status is available here: http://www.msss.com/lro/lroc/index.html |
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Mar 17 2012, 10:30 PM
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#2
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Member Group: Members Posts: 808 Joined: 10-October 06 From: Maynard Mass USA Member No.: 1241 |
John VV - nice topos!
Centsworth -- you said in half the words, what I meant (!) Nice lander image! Here is a zoomed image of the Luna 17 lander. Reoriented (left becomes right) so that sun seems to come in from the top left corner (it seems to give more perspective? or it could just be my internal preference for light coming in from the left!) notes on processing: I tried something new... in order to try to reduce the blackest shadows and whitest glares, I found the median DN in the base image, and then for each pixel, added box-mueller noise (mean +10, sigma 7) if the pixel was below the median, or b-m noise (mean -10, sigma 7) if it was above the median. The +10/-10 on the b-m mean, increases/decreases the overall brightest below/above the median. I made 12 images with this stochastic noise (computed for each pixel). I then did a 3x zoom (each pixel, with rational noise, now becomes 9, based on the DN info of many noisy neighbors, i.e. a b-spline zoom) and then I stacked the 12 resulting images. This averages the pixels towards their new means (shifts the histogram), normalizes the added noise, and 'hallucinates' new (but probable) info into the zoom. It wont change the shape of the glare, but it should add detail into the whitest and darkest areas. (... we now return you to your regularly scheduled forum!) -------------------- CLA CLL
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