Closed Thread Icon

Topic awaiting preservation: the best image extraction technique (Page 1 of 1) Pages that link to <a href="http://ozoneasylum.com/backlink?for=24726" title="Pages that link to Topic awaiting preservation: the best image extraction technique (Page 1 of 1)" rel="nofollow" >Topic awaiting preservation: the best image extraction technique <span class="small">(Page 1 of 1)</span>\

 
jive
Paranoid (IV) Inmate

From: Greenville, SC, USA
Insane since: Jan 2002

posted posted 01-18-2005 23:45

I know tutorials are a dime a dozen on this. I've done image extraction in several ways in photoshop. But I just can't find on to suit my fancy. They all seem like such tedious, drawn out processes. Is their a simpler method out there that you use? If not what seems to be the best method that maintains the quality of the image (less halo etc) Just grasping for thoughts.

Rinswind 2th
Maniac (V) Inmate

From: Den Haag: The Royal Residence
Insane since: Jul 2000

posted posted 01-19-2005 00:18

The best results i got was an two-step method but i am not shure what i exactly did.
It was something like using the Magnetic lasso tool (experiment with its options) for an quick selction.
Then when the selection was closed save the selection as path.
Finally (as i remember) i used the pen tools in it's different form together with the zoom tool to tweak the path.
In the end save the path as selection.
When you got used to either the pen tool or the magnetic lasso (with its options right)you could do image extraction very fast.

It's a looong time since i did this so i could be completly wrong.

------------------------------
Support Justice for Pat Richard

poi
Paranoid (IV) Inmate

From: France
Insane since: Jun 2002

posted posted 01-19-2005 00:25

Generally I make a large selection with the polyline lasso, then I refine it with the zoom, and by adding/substracting some selections made with the polyline or freehand lasso. The accuracy of the resulting selections is quite ok and it's extremely easy and quick to do.

Bud depending on the picture, the methods based on chanels explained on GN works rather well too.

Xdreamer.ch
Maniac (V) Inmate

From: Switzerland
Insane since: Mar 2001

posted posted 01-19-2005 01:17

Go with the pentool :-] There are many ways to get rid of backgrounds but I can't explain them in english :-(

crip
Bipolar (III) Inmate

From: iasi, romania
Insane since: Apr 2002

posted posted 01-19-2005 02:23

I usually start with the lasso, for a loose selection, which seems to be the general idea, and then go to quick mask mode and with zoom i paint my selection: Z, D, B, X...and paint away..X, paint, X paint, Q, ctrl-c, ctr-n, ctr-v :)))


Curiously yours, crip

axleclarkeuk
Paranoid (IV) Inmate

From: Swansea, Wales, UK
Insane since: Aug 2001

posted posted 01-19-2005 17:54

It all depends on what type of image you are working with and what you want to extract. If the image has a fairly neutral background and a well defined edge, i ind the best and quickest way id the extraction tool. You can also use the Colour Selection Tool to do a good job. The pen tool with 1 1px feather also works well if you zoom in on a image.

kimson
Bipolar (III) Inmate

From: The Carpenter Arms
Insane since: Jan 2005

posted posted 01-19-2005 18:17

What language do you speak Xdreamer? How about writing it down in your language, I'm sure we'll find someone to translate... I'm pretty curious about your explanation! Give it a go...

silence
Maniac (V) Inmate

From: Melbourne, Australia
Insane since: Jan 2001

posted posted 01-19-2005 18:28

I've found that the pen tool in addition to crip's method works most efficiently for me. The pen tool to mask large areas, and a small hard brush to work on the fine detail.

I used it for this mini-tutorial: Cutlass Photo-manip (Warning: large download)



(Edited by silence on 01-19-2005 18:34)

Wakkos
Maniac (V) Mad Scientist

From: Azylum's Secret Lab
Insane since: Oct 2000

posted posted 03-01-2005 00:12

I liked:
http://www.gurusnetwork.com/tutorial/replace_background/
and
(let me see if I find it)
http://www.tiemdesign.com/tabindex-16/tabId-19/itemid-1312/DesktopDefault.aspx
is not the one I was looking for, but it's the same tecnich (or however you spell that)

______________
that naked guy

hersenspinsels
Obsessive-Compulsive (I) Inmate

From: The Netherlands
Insane since: Mar 2005

posted posted 03-22-2005 14:48

I prefer the method of a rough cut with the poly-lasso, followed up with a precise pass with the same tool, then going to the eraser. Depending on the scale of the cutout and the aliassing situation. Ofcourse a large extraction woth lots of transparency takes a large amuont of time ;-)
The first rough cut makes for a nice preview to keep moral high... Also you can preview the problem areas a bit. Also important to select small areas, cut away the background and select a new area because of unintended deselecting. Better for the bloodpressure.

The PS extraction tools have let me down too often, pressing buttons and losing all work, etc...

HersenSpinsels.nl

warjournal
Maniac (V) Mad Scientist

From:
Insane since: Aug 2000

posted posted 03-22-2005 17:23
quote:
...then going to the eraser.


My ears! My ears are burning!
I think my head is going to explode.
Please get out of the habit of using eraser and into the habit of using a layer mask.

reisio
Bipolar (III) Inmate

From: Florida
Insane since: Mar 2005

posted posted 03-22-2005 17:52

Nothing wrong with using the eraser.

poi
Paranoid (IV) Inmate

From: France
Insane since: Jun 2002

posted posted 03-22-2005 18:01

...except that it can't be undone contrary to a layer mask.

warjournal
Maniac (V) Mad Scientist

From:
Insane since: Aug 2000

posted posted 03-22-2005 18:24

I got the duct tape around my head just in time. I now look like Jackal from Fist of the North Star.

Quick romp through FAQ for some golden oldies:
How do I up the opacity of a layer?
How not to be destructive with data and save your sanity.

JKMabry
Maniac (V) Inmate

From: raht cheah
Insane since: Aug 2000

posted posted 03-22-2005 19:02
quote:
...except that it can't be undone contrary to a layer mask.



I understand this philosophy and advocate it sure but I almost want to scream everytime I hear someone advocate a layer mask over a "more destructive" method. Tell you what, copy the layer, hide the original, *erase* on the copy, if you screw up, the original's there! BOO!

Blind faith layer mask advocate elitist's must all die!!! /me stabs poi and warjournal

Rants aside =) warjournal and steve have this covered to perfection, gracefully so, backdoors all in place =)

synax
Maniac (V) Inmate

From: Cell 666
Insane since: Mar 2002

posted posted 03-22-2005 20:18

Plus, if you extracting the image and don't care about the background, then there's really no reason why you can't use the eraser.


*stabs mabers*

There's only one person around here that does the stabbin', buddy!

reisio
Bipolar (III) Inmate

From: Florida
Insane since: Mar 2005

posted posted 03-22-2005 20:51
quote:
JKMabry said:

quote:...except that it can't be undone contrary to a layer mask.

I understand this philosophy and advocate it sure but I almost want to
scream everytime I hear someone advocate a layer mask over a "more
destructive" method. Tell you what, copy the layer, hide the original,
*erase* on the copy, if you screw up, the original's there! BOO!

Blind faith layer mask advocate elitist's must all die!!! /me stabs poi and warjournal

Rants aside =) warjournal and steve have this covered to perfection, gracefully so, backdoors all in place =)


Exactly.

JKMabry
Maniac (V) Inmate

From: raht cheah
Insane since: Aug 2000

posted posted 03-22-2005 21:03
quote:
There's only one person around here that does the stabbin', buddy!



I had reservations indeed and tried different things, a poke, a punch in the nose, it all seemed too violent. I'll hire out you for my next stab.



edit: misspelled "too" ack

(Edited by JKMabry on 03-22-2005 21:04)

hersenspinsels
Obsessive-Compulsive (I) Inmate

From: The Netherlands
Insane since: Mar 2005

posted posted 03-23-2005 12:39

Allways happy to contribute to violent discussions ;-)

I do use masking when I'm not yet decided what part of an image should be visible (say when using a small part of an image) or when using complex transparency on an image... In the above example I was reffering to the pretty girl that should be seperated from her background/husband to be pasted in the picture of your room, etc...

Is one permitted to use an eraser on a layermask? ;-)

HersenSpinsels.nl

Arthemis
Paranoid (IV) Inmate

From: Milky Way
Insane since: Nov 2001

posted posted 03-28-2005 10:57

you can just turn on quick mask mode and paint away. it has to have a good resolution, though for it to work properly

templar654
Paranoid (IV) Inmate

From: Beyond that line...
Insane since: Apr 2004

posted posted 03-28-2005 15:17

I think it all depends on the background. I mostly use Quick Mask Mode nice simple a bit lengthy but I can do it in detail.

This is my Signature ----- Laughter is not an option... it is a motive!

Signature BEGINS NOW!!

. <-- is next to the arrow

Moth
Paranoid (IV) Inmate

From: columbus, ohio, usa
Insane since: Jul 2002

posted posted 03-30-2005 03:20
quote:
you can just turn on quick mask mode and paint away. it has to have a good resolution, though for it to work properly




This is the usual method I use. I go slightly larger than I need then trim off the extra with a regular mask. It gives more control on the edges.

If the resolution is so-so, I use the extract filter. I have never gotten great results from the pen tool even though that is the recommended method in most photoshop books I have seen.


Life's too short to put up with bad art.

Spirit Hawk
Bipolar (III) Inmate

From: Atlanta, GA USA
Insane since: Aug 2001

posted posted 04-15-2005 07:04

The method I prefer, and find the easiest is as follows:

-Set the history state of the image.
-Use the Extract filter in PS.
-Then come in with the eraser & history brush to do the detail/clean-up work. That way, it's sort of a non-destructive use of the eraser.

Anyways,

-Me.

me. not you.

« BackwardsOnwards »

Show Forum Drop Down Menu