Can photoshop do this? if so, how?

WarriorOfMetal · 01-15-2008, 08:50 PM

i have a photo on my computer that i took with a digital camera, of a pencil drawing on posterboard. is it possible for photoshop to find the pencil lines, ignoring all the lighting oddities and stuff, and replace all the various shades of dark grey with black, on either a transparent or new plain black background? the only way i know of to do this is to spend a couple hours using the various erasing tools and then the pen tool, tracing sloppily with a mouse, and ending up with a less than perfect result.

this is the pic in question:

Uber Mega · 01-15-2008, 09:08 PM

Yup...you have to use a combination of contrast, saturation/desaturation and erasing to bring out the guitars lines and make it easier to remove the surroundings.

WarriorOfMetal · 01-15-2008, 09:31 PM

Quote:

Originally Posted by Uber Mega

Yup...you have to use a combination of contrast, saturation/desaturation and erasing to bring out the guitars lines and make it easier to remove the surroundings.

that's kinda what i did earlier, but it took forever and didn't turn out very well. perhaps i was doing something wrong?

the problem was, the darker parts on the outsides of the pic would start to go too much into the desired lines, obscuring them.

Vegetta · 01-15-2008, 09:39 PM

Illustrator - trace outlines - then you will have it as a vector file.

It can be a finicky bitch tho

or in photoshop outline what you want to keep with the pen tool and then stroke your path

WarriorOfMetal · 01-16-2008, 12:08 AM

i think i've got it. give me a couple more hours of tweaking and hopefully i'll have a colorized version of that pic posted

WarriorOfMetal · 01-16-2008, 03:37 AM

...and over 3 hours later:

Zepp88 · 01-16-2008, 03:39 AM

That's some nice work dude

VicerExciser · 01-16-2008, 03:40 AM

that looks fuggin' sick man.

WarriorOfMetal · 01-16-2008, 03:49 AM

so much work for that

that's the real neck/fingerboard that'll be used, and then i took the bridge and pickup switch from my Charvel, added a saddle to the bridge, and used pics of real Joe Barden pickups, Gotoh tuners, and a Carvin strat volume knob. oh, and the smudge tool is amazing

WarriorOfMetal · 01-16-2008, 03:52 AM

Quote:

Originally Posted by Zepp88

That's some nice work dude

thanks dude (and yes, you too VE)....now i just need to get the real thing completed

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01-15-2008, 08:50 PM	#1 (permalink)
WarriorOfMetal The Dragonrider Join Date: Mar 2006 Location: Boston, MA // Northern VA Posts: 2,383 Real Name: Ari Main Seven: HevAri Dragonrider Rig: Engl Savage 120 Thanked: 48 $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$	Can photoshop do this? if so, how? i have a photo on my computer that i took with a digital camera, of a pencil drawing on posterboard. is it possible for photoshop to find the pencil lines, ignoring all the lighting oddities and stuff, and replace all the various shades of dark grey with black, on either a transparent or new plain black background? the only way i know of to do this is to spend a couple hours using the various erasing tools and then the pen tool, tracing sloppily with a mouse, and ending up with a less than perfect result. this is the pic in question:

01-15-2008, 09:08 PM	#2 (permalink)
Uber Mega Kenny G > You. Join Date: Dec 2007 Location: Leeds, UK Posts: 1,279 Real Name: Thom Main Seven: Blackmachine B7 Main ERG: Errrggg! Rig: Pod XT-Mbox-P.Tools Thanked: 32	Yup...you have to use a combination of contrast, saturation/desaturation and erasing to bring out the guitars lines and make it easier to remove the surroundings. ____________________________________________ ...Into the orchard I walk peering way past the gate Wilted scenes for us who couldn't wait - Harvest

01-15-2008, 09:39 PM	#4 (permalink)
Vegetta ss.org Regular Join Date: Oct 2004 Location: Near Morgantown WV Posts: 2,222 Real Name: Rick Main Seven: cb rg1527 Rig: ADA mp1/ SpiderII Thanked: 14	Illustrator - trace outlines - then you will have it as a vector file. It can be a finicky bitch tho or in photoshop outline what you want to keep with the pen tool and then stroke your path this space for rent

01-16-2008, 03:39 AM	#7 (permalink)
Zepp88 4 8 15 16 23 42 Join Date: Apr 2007 Location: A Technological Deadzone Posts: 7,358 Real Name: Mike Main Seven: Schecter C7 Blackjack Main ERG: I haven't felt the need.. Rig: Mesa -> Vader Thanked: 49	That's some nice work dude Withersoul - Monolithic Epic Doom Metal M.W. Tremblay.com

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01-16-2008, 12:08 AM	#5 (permalink)
WarriorOfMetal The Dragonrider Join Date: Mar 2006 Location: Boston, MA // Northern VA Posts: 2,383 Real Name: Ari Main Seven: HevAri Dragonrider Rig: Engl Savage 120 Thanked: 48 $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$	i think i've got it. give me a couple more hours of tweaking and hopefully i'll have a colorized version of that pic posted

01-16-2008, 03:37 AM	#6 (permalink)
WarriorOfMetal The Dragonrider Join Date: Mar 2006 Location: Boston, MA // Northern VA Posts: 2,383 Real Name: Ari Main Seven: HevAri Dragonrider Rig: Engl Savage 120 Thanked: 48 $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$	...and over 3 hours later:

01-16-2008, 03:40 AM	#8 (permalink)
VicerExciser Jack the Ripper Join Date: Dec 2007 Location: Indio, California Posts: 601 Real Name: Marvin Main Seven: N/A Rig: Fender FM212R Thanked: 7	that looks fuggin' sick man. This world... is... OOOOUUUURRRRSSS!!!

01-16-2008, 03:49 AM	#9 (permalink)
WarriorOfMetal The Dragonrider Join Date: Mar 2006 Location: Boston, MA // Northern VA Posts: 2,383 Real Name: Ari Main Seven: HevAri Dragonrider Rig: Engl Savage 120 Thanked: 48 $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$ $WarriorOfMetal is rather kvlt and tr00. \m/$	so much work for that that's the real neck/fingerboard that'll be used, and then i took the bridge and pickup switch from my Charvel, added a saddle to the bridge, and used pics of real Joe Barden pickups, Gotoh tuners, and a Carvin strat volume knob. oh, and the smudge tool is amazing

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Can photoshop do this? if so, how?