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AssasinMonkey β€” Recovering sketch from Background layer (in PS)

Published: 2014-08-21 00:23:09 +0000 UTC; Views: 29385; Favourites: 726; Downloads: 233
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Description Ever had those moments you created a new file and started sketching something awesome only to discover you made it on the Background layer?
No worries! With these steps you'll be able to recover it.


Just a little something for those derp moments, sketching on the background layer.
Works best with black sketches (or the opposite, white on black I guess, just don't do the invert then). If it's along those lines the sketch separates almost flawlessly.
Have some little short-cuts along with it as well

This isn't the only way, but it allows for some other stuff as well.
What it does is only showing black because the layer you put the mask on only contains black (or the other colour you chose).
Since layer masks only use greyscales it works best with black on white sketches, but can also at least partially recover anything not white.
If your sketch is already finished and just need to do an under-painting (or something), setting it on Multiply could work fine as well.
The method I've shown however allows you to freely transform, cut, paste, and whatever else you can think of. You can also just take selections of what you want to separate.

Alternative method:
[CTRL+ALT+2] selects your RGB channel (all visible layers, though), which you can then invert [CTRL+SHIFT+I] and 'fill' on a new layer (or layer mask)

This is a little tip/hint/trick 2 FunBit, because I didn't have a 2 FunBits journal in more than 2 weeks.
Initially this idea I'd just type it out, but heh, lets do something fresh.

PS: My writing, though. haha.

Used Photoshop CS6
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Comments: 65

AssasinMonkey In reply to ??? [2014-08-21 11:39:00 +0000 UTC]

Yea, I thought about using the channels as well. You can select them with [CTRL+ALT+2] (for RGB channel #2)
You then just need to invert selection [CTRL+SHIFT+I] and 'fill' a layer

Downside of that, for me since I work on large sheets with lots of smaller sketches, is it selects your entire image.
Copying it in a layer mask allows for partial. Not the biggest difference, but like you said just another way of doing it

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Soulymans-real-self [2014-08-21 03:52:48 +0000 UTC]

Diese ist gross gut! Ich danke fur diese tutorial, weil ich immer doof machen.Β 

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Pirenja [2014-08-21 03:25:18 +0000 UTC]

If you're on SAI, you can do the same thing by going to Layer>Luminance to Transparency. Thanks for this! Really helpful!

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Tsitra360 [2014-08-21 03:19:53 +0000 UTC]

I've never done that before. What a clever fix.

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Bluethealpha [2014-08-21 01:34:13 +0000 UTC]

Man I don't know how many times I've done this! This is very helpful!Β 

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Coelacanth0794 [2014-08-21 00:34:51 +0000 UTC]

Is this a viable set of commands for all/most image manipulation software, or just 1 or 2 in particular?

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Mart3323 In reply to Coelacanth0794 [2014-08-21 08:56:40 +0000 UTC]

As mentioned in another comment, some programs have a "Lightness to transparency"(SAI/Manga studio) or "Color to alpha" (GIMP), which does most of this for you, all you'd have to do is paint over with black (lock transparency and fill the entire layer with black)

Besides basic programs like Paint or something, i think you can do it in every program.., if it's advanced enough to let you shift hue, it probably has a way to key out a color
(theoretically there could also be a "lightness to selection" option and then you just erase your fuzzy selection, then paint black.., but i can't remember actually doing that anywhere, so i'm not sure about that)

Is there a specific program you're wondering about?

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Coelacanth0794 In reply to Mart3323 [2014-08-21 16:24:52 +0000 UTC]

Yeah, GIMP, but it looks like you've covered it. Thanks!

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Mart3323 In reply to Coelacanth0794 [2014-08-21 17:25:46 +0000 UTC]

Layer -> Transparency -> Color to alpha

GIMP is especially nice about it in that it keeps color (manga studio and SAI turn it into grayscale) and lets you key out any color instead of just whiteΒ 
But for just a sketch everything works equally fine

When trying to recover other art (say a colored pony off a white background), you may have to key out your color and then make copies of the layer until it's opaque enough for your needs - i'm sure you'll figure it out when that happens though

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AssasinMonkey In reply to Coelacanth0794 [2014-08-21 00:50:53 +0000 UTC]

If it can turn the sketch into an Alpha, transparancy, layer mask, etc. and apply that to a black layer, it should work for other programs as well.
Not familiar with any other than Photoshop, though so I'm not sure which ones can or can not.

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TheChocolateGMR [2014-08-21 00:31:41 +0000 UTC]

Oh man this is so helpful!! Thank you!!!

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SnoopyStallion [2014-08-21 00:29:41 +0000 UTC]

This could be handy some day. Nice trick. Thanks ^^

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BigDub [2014-08-21 00:27:51 +0000 UTC]

Thank you. I have run into this several times and hadn't thought of attempting to recover it using masks like this. This is an excellent technique to perfectly remove a black drawing from a white background.

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MONSTERLOCKED [2014-08-21 00:26:12 +0000 UTC]

THIS HAS MADE MY DAY

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