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Johnny-Jump-Up, next generation coming up...

 
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rjlittlefield
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Joined: 01 Aug 2006
Posts: 18172
Location: Richland, Washington State, USA

PostPosted: Fri Apr 11, 2008 10:56 pm    Post subject: Johnny-Jump-Up, next generation coming up... Reply with quote



It must be Spring -- Rik is ripping the flowers apart again! Laughing

These are the reproductive parts of Johnny-Jump-Up, Viola tricolor. You can see the whole flower here. The image shown above is with the bottom petal removed, looking up into what would normally be the back bottom side of the flower.

From a technical standpoint, the most interesting thing about this image is that it has had no manual retouching whatsoever. Note the absence of halo against the dark background and where there is strong overlap of foreground/background structures. All the tools necessary to do this are now available off the shelf, though at this moment controlling them is far from easy. With a bit of luck, all that will soon change. In the meantime, I bid you adieu 'cuz it's my bedtime now. Very Happy

--Rik

Technical: Canon 300D with Olympus 38mm bellows lens on 97 mm extension, marked f/4, 28 frames at 0.005" focus step.
Aligned with PTGui, stacked with TuFuse -p 1 --wMode 1 --wExposure 0 --wContrast 1 --wSaturation 0 -e 10
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MacroLuv



Joined: 28 Aug 2006
Posts: 1964
Location: Croatia

PostPosted: Sat Apr 12, 2008 12:42 am    Post subject: Reply with quote

Hey, it looks absolutely great! Very Happy
Nice piece of software too. Thanks for the link.
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P.S.
Noticing of my "a" and "the" and other grammar
errors are welcome. Very Happy
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Planapo



Joined: 07 Nov 2006
Posts: 1533
Location: Germany, in the United States of Europe

PostPosted: Sat Apr 12, 2008 3:13 am    Post subject: Reply with quote

Rik wrote:
Quote:
It must be Spring -- Rik is ripping the flowers apart again!


Good Mornin' you odd gardener! Laughing Wink

Yeah, this looks excellent. Did you report on the software earlier and I happened to miss it?

Thanks for the eye candy on this Saturday morning.
--Betty Very Happy
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Charles Krebs



Joined: 01 Aug 2006
Posts: 5761
Location: Issaquah, WA USA

PostPosted: Sat Apr 12, 2008 8:28 am    Post subject: Reply with quote

It does look very good!

...comparison stack...comparison stack...comparison stack... Wink Wink
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acerola



Joined: 13 Dec 2006
Posts: 251
Location: Hungary

PostPosted: Sat Apr 12, 2008 11:59 am    Post subject: Reply with quote

I tried the software also. It's good. There is no halo and no exposure differences. There is a little problem with overlapped things, as with all the others.
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rjlittlefield
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Joined: 01 Aug 2006
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Location: Richland, Washington State, USA

PostPosted: Sat Apr 12, 2008 12:52 pm    Post subject: Reply with quote

Planapo wrote:
Did you report on the software earlier and I happened to miss it?

Nope, this was the first image that I've posted.

Charles Krebs wrote:
...comparison stack...comparison stack...comparison stack... Wink Wink

But of course! These things just take time...

See http://www.photomacrography.net/forum/viewtopic.php?t=4721 . Wink

Péter, the treatment of overlap is often improved if your images are well registered before running them through TuFuse. In some cases, this can be easily done with the align_image_stack tool distributed with hugin. It just depends on whether the tool can find proper control points.

--Rik
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acerola



Joined: 13 Dec 2006
Posts: 251
Location: Hungary

PostPosted: Sat Apr 12, 2008 1:10 pm    Post subject: Reply with quote

Is it aligning the frames also? I tested Tufuse with the aligned frames from CombinezM. Can it be better than CombinezM?
I think overlap is and will be a problem because in the same place there is high contrast pixels from two plane.
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rjlittlefield
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Joined: 01 Aug 2006
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PostPosted: Sat Apr 12, 2008 1:39 pm    Post subject: Reply with quote

acerola wrote:
Is it aligning the frames also? I tested Tufuse with the aligned frames from CombinezM.

Perhaps I've overlooked a capability. How does one tell CombineZM to export aligned frames? When I export after aligning, what comes out looks like the un-aligned version.

Quote:
Can it be better than CombinezM? I think overlap is and will be a problem because in the same place there is high contrast pixels from two plane.

All of the current tools allow background detail to "show through" foreground structure, if the background detail is equal or higher contrast than the foreground. That problem is still on the to-be-solved list.

--Rik
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rjlittlefield
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PostPosted: Sat Apr 12, 2008 2:10 pm    Post subject: Reply with quote

Oh, I see now.

Export after alignment does seem to export the aligned versions, but the alignment function itself was broken in the February 3 version of CombineZM (and for some months before that). It would shift, but not scale.

That problem is repaired in the April 1 version. If you have an older version, I suggest to get the new one and repeat your tests.

One caveat: in the April 1 version, Do Stack has difficulties with some stacks. Large fuzzy areas appear in places that used to be handled OK. This seems to have appeared at the same time as Do Soft Stack and the three-argument form of the Find Detail command.

--Rik
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acerola



Joined: 13 Dec 2006
Posts: 251
Location: Hungary

PostPosted: Sat Apr 12, 2008 3:12 pm    Post subject: Reply with quote

Thanks Rik, there was no scale in the alignment. I was suprised. I will try with the newer version too.
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beetleman



Joined: 04 Aug 2006
Posts: 3578
Location: Southern New Hampshire USA

PostPosted: Sat Apr 12, 2008 3:45 pm    Post subject: Reply with quote

Lots of really great detail in the picture Rik. You can look at it for a long time and still see things you missed the time before.
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Ken Ramos



Joined: 27 Jul 2006
Posts: 6964
Location: lat=35.4005&lon=-81.9841

PostPosted: Sat Apr 12, 2008 4:50 pm    Post subject: Reply with quote

A very nice image there Rik. Very Happy I can't say as I have ever seen any around here but there probably are. Think Seems that when I looked them up, I found them to go by a number of other names, mostly associated with violets, of which I have a front lawn full, well at least until I mow the lawn. Twisted Evil Laughing
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Ken 2014
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rjlittlefield
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PostPosted: Sat Apr 12, 2008 8:59 pm    Post subject: Reply with quote

Doug, that's the beauty of biological subjects -- no matter how deep you go, there's always more interesting detail to see.

Ken, if you had one of these, I guarantee that after a short while you'd have a zillion of them. They spread prolifically by seed, and they're self-pollinating so one plant is all it takes, not even any bugs. As for the names, well, there's apparently N+1 for any N. I just learned another one a couple of minutes ago when I happened to Google on viola tricolor pollination and turned up the Wikipedia article that starts out
Quote:
Heartsease (Viola tricolor) is a common European wild flower

"Heartsease", eh? Never heard that one before!

Thanks for the comments, guys. Very Happy

--Rik
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