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Venera Images, VENERA 13 fully calibrated image
vikingmars
post Sep 14 2005, 09:26 PM
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biggrin.gif Here is the Venera 13 fully calibrated image, produced from raw imaging 3-filters data (note the 3 horizons at left well discernible). It was published inside "L'Astronomie Magazine" of Societe Astronomique de France.
Enjoy !
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Decepticon
post Sep 14 2005, 09:31 PM
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Wow! Nice work.
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um3k
post Sep 14 2005, 10:07 PM
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Very nice!
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hal_9000
post Sep 14 2005, 10:25 PM
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WoW!
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gpurcell
post Sep 14 2005, 10:36 PM
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QUOTE (vikingmars @ Sep 14 2005, 09:26 PM)
biggrin.gif Here is the Venera 13 fully calibrated image, produced from raw imaging 3-filters data (note the 3 horizons at left well discernible). It was published inside "L'Astronomie Magazine" of Societe Astronomique de France.
Enjoy !
*



Very, very nice!
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tedstryk
post Sep 15 2005, 12:18 AM
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QUOTE (vikingmars @ Sep 14 2005, 09:26 PM)
biggrin.gif Here is the Venera 13 fully calibrated image, produced from raw imaging 3-filters data (note the 3 horizons at left well discernible). It was published inside "L'Astronomie Magazine" of Societe Astronomique de France.
Enjoy !
*


I am skeptical about that being a three image mosaic. I think that it is a three image mosaic merged with the clear channel scan. The color data simply isn't that good (The fact that the data is from Brown leads me to assume that it is the same set I use, because that is where I got mine). . Also, the color imagery doesn't extend out that far. Here is the best that can be produced with three frames.

The holes in the red image and some of the holes in the green image could be filled form two other images. It is also either scaled up or super-resolution - this is far bigger than the original image. I made a similar attempt and came up with this.




That said, it is an excellent image. I am assuming that whoever made this used the whole data set for a super-resolution product and produced color with the available images in each band.


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vikingmars
post Sep 15 2005, 07:18 AM
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smile.gif Dear Tedstryk,
Yes, indeed, I had to reconstruct some missing data from different channels and adjust them for their wavelenghts, before integrating them to make the full final RGB color image. Also, the final product is somewat blowed-up because I had to make those fill-ins on a very precise up-to-the-pixel basis !
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tedstryk
post Sep 15 2005, 02:31 PM
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QUOTE (vikingmars @ Sep 15 2005, 07:18 AM)
smile.gif Dear Tedstryk,
Yes, indeed, I had to reconstruct some missing data from different channels and adjust them for their wavelenghts, before integrating them to make the full final RGB color image. Also, the final product is somewat blowed-up because I had to make those fill-ins on a very precise up-to-the-pixel basis !
*


Great work!


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tedstryk
post Sep 19 2005, 05:17 PM
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I have updated one of my mosaics from Venera 13. I have tried to do gap fill by guessing how features might continue from one side to the other.



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Decepticon
post Sep 19 2005, 09:45 PM
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Now thats cool!
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GregM
post Sep 24 2005, 03:39 AM
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.
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Decepticon
post Sep 24 2005, 05:05 AM
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tedstryk I was wondering if you have ever edited the image so it would look as if I was standing on Venus?

I once saw a image like it in astronomy magazine but it was small.
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tedstryk
post Sep 24 2005, 12:33 PM
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QUOTE (Decepticon @ Sep 24 2005, 05:05 AM)
tedstryk I was wondering if you have ever edited the image so it would look as if I was standing on Venus?

I once saw a image like it in astronomy magazine but it was small.
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Other than these, I have found that frustrating. In addition to the wierd projection in terms of its shape, the fact that the camera turned so much as it scanned creat the appearance of everything being right in front of you. I remember an issue of Astronomy with some Venera images back in the late 1980s, but I think it was just the Venera 14 camera 1 picture that they showed.


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Bob Shaw
post Sep 24 2005, 02:48 PM
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QUOTE (tedstryk @ Sep 24 2005, 01:33 PM)
Other than  these, I have found that frustrating.  In addition to the wierd projection in terms of its shape, the fact that the camera turned so much as it scanned creat the appearance of everything being right in front of you.  I remember an issue of Astronomy with some Venera images back in the late 1980s, but I think it was just the Venera 14 camera 1 picture that they showed.
*


The Soviets were very keen on 'epiphotography' - images made with a rotating turret and a slit rather than a traditional 'eye' design. They famously marketed the Horizont 35mm camera in the West which worked in this way, and is now a collectors item - it moved not only the optical barrel but the film as well, and you ended up with (I think) a 2X normal length negative. The geometry of such images - like those from the Viking Landers - is strange. All the data is there, but it all looks somehow *wrong*, as the perspective doesn't do what you expect. Such cameras were once very popular for school photographs, and produced a very high quality and long format print. Their mechanisms were sometimes slow enough for kids to race away behind the camera, come in from the other side, and be photographed twice!


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dvandorn
post Sep 24 2005, 04:02 PM
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QUOTE (Bob Shaw @ Sep 24 2005, 09:48 AM)
...Such cameras were once very popular for school photographs, and produced a very high quality and long format print. Their mechanisms were sometimes slow enough for kids to race away behind the camera, come in from the other side, and be photographed twice!
*

As you could with the Viking cameras. There is an official Viking Imaging Team portrait out there somewhere, taken with one of the Viking cameras. At least one person appears in the picture three times. Several others appear in it twice.

-the other Doug


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