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um3k
Posted on: Sep 25 2015, 02:25 PM


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I just ordered myself a 40"x40" poster print of the full disc image. Couldn't resist. Using my upcoming birthday as an excuse. wink.gif
  Forum: New Horizons · Post Preview: #226724 · Replies: 549 · Views: 459878

um3k
Posted on: Jul 24 2015, 07:42 PM


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Raw images are posted! http://pluto.jhuapl.edu/soc/Pluto-Encounter/
  Forum: New Horizons · Post Preview: #224659 · Replies: 1286 · Views: 14513610

um3k
Posted on: Jul 20 2015, 08:24 PM


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Good! I need my Pluto fix!
  Forum: New Horizons · Post Preview: #224276 · Replies: 1286 · Views: 14513610

um3k
Posted on: Jul 14 2015, 12:45 PM


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QUOTE (xflare @ Jul 14 2015, 07:18 AM) *
I think the only thing that will ever look like Triton IS Triton lol

Well, there is one other thing: a moldy cantaloupe!
  Forum: New Horizons · Post Preview: #223256 · Replies: 1286 · Views: 14513610

um3k
Posted on: Jul 11 2015, 02:14 AM


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Oh, I'd take orbiters over flybys any day. But I doubt they'll be a feasible option for KBOs for the forseeable future. Shotgun flybys is my pie-halfway-to-the-sky.
  Forum: New Horizons · Post Preview: #222731 · Replies: 729 · Views: 533674

um3k
Posted on: Jul 11 2015, 12:04 AM


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I'm thinking it's high time we start mass producing New Horizons clones and shotgunning them into the outer solar system.
  Forum: New Horizons · Post Preview: #222717 · Replies: 729 · Views: 533674

um3k
Posted on: Jul 9 2015, 09:38 PM


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QUOTE (Phil Stooke @ Jul 9 2015, 04:23 PM) *
Increase by 20 pixels? Wow, I've been around so long I can remember a time when the whole disk was only 20 pixels across.

Come now, Phil. I'm pretty sure everyone here can remember late June!
  Forum: New Horizons · Post Preview: #222612 · Replies: 729 · Views: 533674

um3k
Posted on: Jun 28 2015, 12:48 PM


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I was born the same year Voyager visited Neptune, so this is the first of this sort of brand-new-world flyby* in my lifetime. It's super exciting!

*Excluding comets and asteroids, but I've arbitrary limited the meaning of "world" to bodies that won't let you accidentally tumble off into space.
  Forum: New Horizons · Post Preview: #221884 · Replies: 729 · Views: 533674

um3k
Posted on: Jun 26 2015, 10:49 PM


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I took the liberty of combining Phil's map with Marc Buie's color map:

First, run-of-the-mill color blending mode:
Attached Image


Second, a more creative interpretation, using several layers and blending modes:
Attached Image


In both cases, I offset the Buie maps 80 pixels to the right to (attempt to) align the most prominent albedo features.

Naturally, take this all with a grain of salt, it's just Photoshop fudging.
  Forum: New Horizons · Post Preview: #221829 · Replies: 519 · Views: 361724

um3k
Posted on: Jun 25 2015, 08:47 PM


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Here's my take, pretty modest sharpening, enlargement, and stack:

Attached Image
  Forum: New Horizons · Post Preview: #221806 · Replies: 519 · Views: 361724

um3k
Posted on: Jun 22 2015, 07:41 PM


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Here's my version of today's image:

Attached Image


There's definitely a feature visible near Pluto's right limb, and Charon's got all sorts of stuff going on. Some of it may even be real!
  Forum: New Horizons · Post Preview: #221655 · Replies: 519 · Views: 361724

um3k
Posted on: Jun 19 2015, 06:58 PM


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Here's my take on the shots from yesterday:

Attached Image

  Forum: New Horizons · Post Preview: #221505 · Replies: 519 · Views: 361724

um3k
Posted on: Jun 18 2015, 05:08 PM


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QUOTE (alk3997 @ Jun 18 2015, 01:07 PM) *
Looks like the bright side of Charon always faces Pluto. See if that holds up as we get closer...

Charon and Pluto are already known to be tidally locked to each other.
  Forum: New Horizons · Post Preview: #221462 · Replies: 519 · Views: 361724

um3k
Posted on: Jun 17 2015, 02:27 PM


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I recommend decreasing the brightness to about 85% before sharpening/deconvolving. It prevents the highlights from over saturating.
  Forum: New Horizons · Post Preview: #221393 · Replies: 519 · Views: 361724

um3k
Posted on: Sep 7 2012, 10:43 PM


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QUOTE (elakdawalla @ Sep 7 2012, 11:48 AM) *
smile.gif I have the data, but am still not sure if I'm permitted to post it or not. It's been a while since I've asked about this, so I'll ping them again.

No pressure, it's just good to know it hasn't vanished, and that there are now backups. smile.gif
  Forum: Voyager and Pioneer · Post Preview: #190885 · Replies: 64 · Views: 236017

um3k
Posted on: Sep 7 2012, 05:57 AM


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Emily! I saw your presentation on the Voyager 35th video, can't wait to see the full set of images! After 6 years, this thread will finally have closure.
  Forum: Voyager and Pioneer · Post Preview: #190808 · Replies: 64 · Views: 236017

um3k
Posted on: Aug 18 2012, 11:55 PM


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I mean no offense, in fact I greatly admire you and the rest of the MSSS team. You've (collectively and individually) accomplished some amazing things. I just have a rather negative gut reaction to lossy compression. tongue.gif

EDIT: Also, about the demosaicing: I'm quite certain you know what you're doing. I'm referring to the anomalous horizontal lines in the MARDI images, which I assume (perhaps mistakenly) have to do with the demosaicing, the quality of which I (again) assume is limited by the limited processing power/time of the rover. I also fully realize that more complex, non-linear interpolation algorithms aren't very conducive to scientific analysis. Perhaps my excessive assumptions are correlated with the fact that the MSSS team has cameras in space, while I have a desk cluttered with scavenged optics and a spectrograph made of LEGO bricks and a mutilated DVD-R. tongue.gif
  Forum: MSL · Post Preview: #189056 · Replies: 529 · Views: 433762

um3k
Posted on: Aug 18 2012, 11:16 PM


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I suppose that sort of makes sense. It makes the photographer in me cringe, and explains the sub-par demosaicing, but I understand the logic behind it. As someone who frequently deals with video encoding, I'm well aware of the relative compression efficiency of redundant data.
  Forum: MSL · Post Preview: #189054 · Replies: 529 · Views: 433762

um3k
Posted on: Aug 18 2012, 10:50 PM


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QUOTE (Cargo Cult @ Aug 18 2012, 06:45 PM) *
Something I've been wondering about - are the Mastcam, MARDI and MAHLI JPEG images being recompressed on Earth, or is this JPEG data originally produced on Mars?

At least some of the images are compressed in-rover, but I suspect these glaring artifacts are the result of recompression for the web. Especially since the data is almost certainly transmitted as a grayscale image with an intact bayer pattern. It'd be rather silly to debayer it on Mars and triple the amount of data that needs sent.
  Forum: MSL · Post Preview: #189052 · Replies: 529 · Views: 433762

um3k
Posted on: Aug 18 2012, 06:00 AM


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That's the JPEG compression having an aneurysm. smile.gif
  Forum: MSL · Post Preview: #188992 · Replies: 529 · Views: 433762

um3k
Posted on: Aug 18 2012, 03:50 AM


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@bdshort:
Take a look at Avisynth combined with the MVTools 2 plugin. With the right settings it gives results comparable to and sometimes better than After Effects.
  Forum: MSL · Post Preview: #188987 · Replies: 370 · Views: 229289

um3k
Posted on: Aug 17 2012, 04:18 PM


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Heck of a coincidence I was listening to this song when I first saw this thread.
  Forum: Titan · Post Preview: #188896 · Replies: 16 · Views: 12749

um3k
Posted on: Aug 7 2012, 06:37 AM


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Walfy, your first image is mismatched (possibly throwing off the ones that follow, as well). Here's a correction:


(click for full size and download)


  Forum: MSL · Post Preview: #187332 · Replies: 370 · Views: 229289

um3k
Posted on: Aug 6 2012, 08:34 PM


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Someone requested linearized images? Here you go, cross-eyed 3d to boot.


(Click to view larger and download full size on Picasa)
  Forum: MSL · Post Preview: #187188 · Replies: 1152 · Views: 921094

um3k
Posted on: Oct 5 2011, 03:30 AM


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Sorry for the double post, but today was the big day!

Attached Image


Here's my niece showing off our film in the local Blockbuster store. Pretty exciting! It's in every Blockbuster location in the US (there are still 2,500 of them despite recent cutbacks), and is the first indie film that they have added to their selection in over a year!
  Forum: Chit Chat · Post Preview: #178998 · Replies: 4 · Views: 5010

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