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Reprocessing Historical Images - II, Restoring images from antiquated and/or poor quality sources
machi
post Nov 11 2009, 01:02 PM
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I send one original image from Mariner 9 (mosaic is from three images), so you can compare original and result.
Images are improved so, that I'm trying preserve original usefull information and remove noise and reseau marks. Especially in widefield Mariner 9 images is problem with horizontal errors. Color is entirely artificial, just for better look.
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ElkGroveDan
post Nov 11 2009, 02:09 PM
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What is your source for the raw data? The one above looks much better than any scan of a print I've seen.


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machi
post Nov 11 2009, 02:21 PM
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My personal archive is converted from http://pds-imaging.jpl.nasa.gov/Admin/reso...m71.html#m71EDR by img2png (thanks to Bjorn Jonsson and PDS!) to png.


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ElkGroveDan
post Nov 11 2009, 02:49 PM
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I didn't realize that the data that old was available electronically. Good work. I wish I had the time to try some of that.


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machi
post Nov 11 2009, 03:04 PM
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I think that these images are oldest electronically available on internet.


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john_s
post Nov 11 2009, 09:10 PM
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I remember that mosaic well! I think it was on the cover of New Scientist at the time. It was the first ever full-disk (almost) image of another planet which showed dramatically more detail than a telescopic view, so it made a big impression on my 15-year-old self- it made Mars suddenly seem very real. It never looked this good back then though- nice restoration job!

John
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Phil Stooke
post Nov 12 2009, 02:47 PM
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"I think that these images are oldest electronically available on internet."

No, the digital Mariner 6 and 7 images are available here:

http://ser.sese.asu.edu/M67/mar67.html

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machi
post Nov 12 2009, 03:46 PM
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Fantastic! Thank you very much. I didn't know about this.


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tedstryk
post Nov 13 2009, 03:26 AM
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The Mariner 6-7 images on that site have a few issues, but they are pretty good. If I ever actually have time to work on an image again, I need to finish my Mariner 6 and 7 set. Here is my recent blog post related to this http://planetimages.blogspot.com/2009/09/m...ni-in-1969.html


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machi
post Nov 13 2009, 04:09 PM
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Another variant of Miranda mosaic.
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tedstryk
post Nov 14 2009, 04:02 AM
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Excellent work!


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machi
post Nov 14 2009, 08:32 PM
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Thanks!
Especially in this case, I have strong inspiration from your images. Your works based on Voyager 2 images are amazing!


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peter59
post Dec 25 2009, 02:00 PM
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QUOTE (tedstryk @ Nov 13 2009, 04:26 AM) *
The Mariner 6-7 images on that site ( http://ser.sese.asu.edu/M67/mar67.html ) have a few issues, but they are pretty good.

I have many objections to this web page, image gallery is incomplete and unsystematic. For example, I can not understand why there no picture 6N01. Secondly, images 6N02 and 6N03 (for example) are at different stages of processing. Properly it should look like this, showing the successive stages of processing:

6N01
Attached Image
Attached Image
Attached Image
Attached Image

6N02

Attached Image
Attached Image
Attached Image
Attached Image


If they are presented only selected images, all images in the gallery should be on the same stage of processing. You can see how great the differences in the various stages of processing.


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Free software for planetary science (including Cassini Image Viewer).
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peter59
post Dec 25 2009, 02:03 PM
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6N03
Attached Image
Attached Image
Attached Image
Attached Image


.. and bonus

Attached Image

IMAGE 6N3 CAMERA A GRN2 FILTER
MICOR ORTHOGRAPHIC PROJECTION (processed by JPL/IPL)
PROJ CNTR L=671 S=800 LAT=8 S LONG=315 E SCALE=2.311 KM/PXL


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Free software for planetary science (including Cassini Image Viewer).
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tedstryk
post Dec 25 2009, 04:07 PM
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Peter, I strongly agree.


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