Juno perijove 4, February 2, 2017 |
Juno perijove 4, February 2, 2017 |
Jun 4 2017, 07:36 PM
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#76
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Sep 4 2017, 01:24 PM
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#77
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
This is a highly speculative experimental anaglyph based on image PJ04_106:
The feature near the center of the anaglyph is the 'spiral' visible in the cropped image below. The 'spiral' is southwest of oval BA. The full image can be seen in this post. The anaglyph is rendered from a 3D model that was created using shape from shading. The underlying assumption is that at least some of the elongated dark features within the 'spiral' are caused by cloud shadows and differences in vertical relief. These dark features look like shadows and some of the elongated, brighter features look like they might be 'walls' of clouds but this interpretation might be incorrect (this is after all a highly speculative anaglyph). The areas around the 'spiral' are probably less accurate in the anaglyph since most of the dark features there are not shadows. |
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Dec 8 2017, 08:10 PM
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#78
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Dec 11 2017, 03:37 PM
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#79
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Dec 11 2017, 04:07 PM
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#80
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
Bjorn, I love the anaglyphs.
One possibly helpful suggestion: The non-topographical variation in color of Jupiter's clouds is greater in the blue filter than in the red. So using only the red filter to generate the 3D might generate a cleaner model of the topography. No guarantees, of course! Something I noticed by comparing the two (selecting those two color planes in Photoshop, then desaturating completely) is that it looks like the blue image was taken after the red. There's an apparent flow of just a couple of pixels in places where the swirls suggest motion. Perhaps that is a trompe l'oeil, but one of the images must certainly have been taken first. Anyway, if accurate, do what you will with that information. Now we're going from two dimensions to three and then four! I'll attach a blink gif of those two images and other eyes may see what I'm talking about and more. |
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Dec 11 2017, 06:42 PM
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#81
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
The channels are essentially mixed. You won't see any parallax or motion between color bands. Alignment offsets are an effect of processing or of real color gradients.
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Dec 11 2017, 08:58 PM
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#82
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Dec 11 2017, 11:58 PM
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#83
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Dec 12 2017, 03:07 PM
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#84
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Dec 14 2017, 05:17 PM
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#85
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
A first revision of the Perijove-04 animation is online on Youtube, now.
According MP4, scenes and stills on junocam.pictures webspace. There is a pretty large time gap between two of the raws, such that there is only a small surface overlap. I tried to blend the scenes in a way, that the video looks at least roughly continuous. |
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Dec 15 2017, 01:51 AM
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#86
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
More tinkering with PJ04_101 [G.Eichstadt] this time using upscaled flyby still.
I've noticed that the Flickr thumbnail tends toward heavy sharpening of the image. -------------------- |
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Dec 16 2017, 07:14 PM
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#87
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Dec 16 2017, 08:36 PM
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#88
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Apr 16 2018, 11:39 PM
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#89
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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Mar 21 2019, 09:36 PM
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#90
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Member Group: Members Posts: 923 Joined: 10-November 15 Member No.: 7837 |
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