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Posted on 07/06/13 08:14:24 AM |
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Steve Caplin
Administrator Posts: 7052 Reply  |
Challenge 457: The celestial sphere
I photographed this beautiful celestial sphere at the fantastic Musée des Arts et Métiers in Paris recently - and it's worth looking here to see the splendid virtual tour of the building. The object was displayed in a rather dull case; can you place it in a more appropriate location? High res is here. This was a particularly tricky cutout, so you'll be pleased to see I've done it for you - it's a png file, so should download with the alpha channel intact.  |
Posted on 07/06/13 09:13:54 AM |
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Deborah Morley
Makeover Magician Posts: 1319 Reply  |
Re: Challenge 457: The celestial sphere
Sorry, I think the sun must have addled my brain. When I open this in photoshop the layer comes up as "index", and everything is greyed out. I can't make a new layer or anything. I tried making a new channel from the selection, still no luck. There must be something really simple. |
Posted on 07/06/13 09:51:27 AM |
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Sjef
Flying Dutchman Posts: 571 Reply  |
Re: Challenge 457: The celestial sphere
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Posted on 07/06/13 10:19:19 AM |
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Steve Caplin
Administrator Posts: 7052 Reply |
Re: Challenge 457: The celestial sphere
Ah yes - this is a byproduct of converting it to a PNG file. Change the mode from Index to RGB and everything will work as normal. |
Posted on 07/06/13 1:25:36 PM |
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BigVern
Q Quipper Posts: 674 Reply  |
Re: Challenge 457: The celestial sphere
Woah! ... Sjef that is a seriously cool image you've created so quickly ... congratulations. _________________ "We're going to need a bigger boat!" |
Posted on 07/06/13 1:53:20 PM |
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Emy
Composition Chef Posts: 390 Reply  |
Challenge 457: The celestial sphere
Steve Caplin wrote: High res is here. This was a particularly tricky cutout, so you'll be pleased to see I've done it for you - it's a png file, so should download with the alpha channel intact. ------------------------------------------------------------------------------------- Hi Steve, thank you for the cutout, it looks fantastic and so well done. I am terribly struggling with cut outs. Is there any tutorial that you can recommend? the more I practice, the worst I get. I am very disappointed at myself when it comes to cutouts, and about to give up. Thank you |
Posted on 07/06/13 5:14:14 PM |
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Steve Caplin
Administrator Posts: 7052 Reply |
Challenge 457: The celestial sphere
I started by selecting all the background with the Magic Wand tool, then made a layer mask using Hide Selection. I then just painted on the layer mask to refine it. Oh, and I've set up a key - F2 - to turn the layer mask on and off, which is much quicker than reaching for the Layers panel. Remember, you can paint on a layer mask even when it's disabled. It did take a long time! |
Posted on 07/06/13 5:34:31 PM |
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Sjef
Flying Dutchman Posts: 571 Reply |
Re: Challenge 457: The celestial sphere
Steve of course knows the right answer and I don't want to impede Emy or Steve, but if you'd asked me I'd say: If you have trouble using the Pen tool, just paint with black on a mask. Hold Shift and keep clicking along the edges. You could use a 90% hard brush to soften the edges a little bit. And: zoom in! Succes! (And thanks BigVern!) 
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Posted on 08/06/13 00:35:29 AM |
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Emy
Composition Chef Posts: 390 Reply |
Challenge 457: The celestial sphere
------------------------------------------------------------------------------------ Thanks for the info I will try to do it the same way as you did. |
Posted on 08/06/13 00:37:31 AM |
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Emy
Composition Chef Posts: 390 Reply |
Re: Challenge 457: The celestial sphere
[quoted] Sjef wrote: Steve of course knows the right answer and I don't want to impede Emy or Steve, but if you'd asked me I'd say: If you have trouble using the Pen tool, just paint with black on a mask. Hold Shift and keep clicking along the edges. You could use a 90% hard brush to soften the edges a little bit. And: zoom in! Succes! (And thanks BigVern!) ------------------------------------------------------------------------------ Hum...Sjef....interesting...I will definitely try it! |
Posted on 08/06/13 05:47:26 AM |
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Sjef
Flying Dutchman Posts: 571 Reply |
Challenge 457: The celestial sphere
Hello Steve, Am I thinking correctly when I assume that you only use your F2 key to repaint along an edge with white where you black painted too far over the edge? I tried painting on a turned off Layer Mask, but in my perception you can't see any result, except when repairing mistakes. Is that the benefit you recommended? Oh, never mind Steve! I read your reply again and encountered the words Hide Selection. Now I see what you mean! |
Posted on 08/06/13 2:22:03 PM |
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Kathryn
Woodland Wonder Posts: 84 Reply  |
Re: Challenge 457: The celestial sphere
Galileo and the celestial sphere. Kathryn  |
Posted on 08/06/13 2:26:11 PM |
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Frank
Eager Beaver Posts: 1770 Reply  |
Re: Challenge 457: The celestial sphere
This display also boasts a miniature "Farnese Atlas Celestral Globe" - oldest known representation of a celestral sphere. Thanks for the cutout Steve.  |
Posted on 08/06/13 10:02:35 PM |
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GKB
Magical Montagist Posts: 4033 Reply  |
Re: Challenge 457: The celestial sphere
 _________________ If at first you don't succeed then skydiving is not for you. |
Posted on 09/06/13 01:19:57 AM |
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joeysala
Perfect Palmist Posts: 604 Reply  |
Re: Challenge 457: The celestial sphere
 _________________ "Imagination, not invention, is the supreme master of art........" Joseph Conrad |
Posted on 09/06/13 04:26:03 AM |
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tooquilos
Wizard of Oz Posts: 2905 Reply  |
Re: Challenge 457: The celestial sphere
We were on the same wave length Kathryn! Beautifully done 
http://vimeo.com/67970029  _________________ Wicked Witch of the West:I'll get you, my pretty! And your little dog, too! |
Posted on 09/06/13 06:00:37 AM |
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Sjef
Flying Dutchman Posts: 571 Reply |
Re: Challenge 457: The celestial sphere
That's very nice, joeysala. Still much to learn on this forum! Nicer viewpoint and beautiful glass vitrines too! |
Posted on 09/06/13 09:08:53 AM |
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joeysala
Perfect Palmist Posts: 604 Reply |
Re: Challenge 457: The celestial sphere
Thanks, Sjef. _________________ "Imagination, not invention, is the supreme master of art........" Joseph Conrad |
Posted on 09/06/13 12:00:13 PM |
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Garfield72
Montage Manceau Posts: 353 Reply  |
Re: Challenge 457: The celestial sphere
Thank you steve. the challenge offered with different images of Musée des Arts et Métiers has inspired me to visit. Yesterday I was in Paris and I visited him. Very beautiful.  |
Posted on 09/06/13 2:47:32 PM |
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josephine harvatt
Gag Gadgeteer Posts: 2603 Reply  |
Re: Challenge 457: The celestial sphere
Should have gone to specsavers  _________________ I'm not really bad - I just draw that way |
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