Adobe Photoshop CS3 Tutorials – Extract Complex Shapes

Tutorials   March 10, 2008  by

Tutorial by Markus Ever tried to extract a model’s hair with the pen tool? Well, I gave up after a few minutes and eventually came up with another way to do that, which I’d like to share with you here in this Adobe Photoshop CS3 tutorial.

Step 1

Start with the image of your choice, I chose this one.

Step 2

Go to your Channels Palette and figure out which of these channels has the highest contrast between the object you want to extract and the background. Usually it’s the blue channel. Make a copy of that layer and make sure the layer is not hidden.

Step 3

Press CTRL+L to open up the Levels Window and drag the controllers to raise the contrast between background and the object which shall be extracted. Be careful, don’t overdo it. If the contrast is too high, we won’t be able to extract the smaller objects.

Step 4

Now use the Lasso Tool (M) to trace around remaining bright parts of the object you want to extract. In my picture for example, I made a selection of the model’s face.

Step 5

Fill the selection with black.

Step 6

CTRL+Click the channel in your Channels Palette to make a selection. Click on the main RGB Channel and now you can copy&paste the selection into a new file.

Final Image

Now you can start using your object for any kind of design project you want. This is how it looks when put on a simple white background:

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Cadence is You The Designer's senior blogger, and the most jack-of-all-trades of the staff. She's always trying out something different every day, some of which fuels her posts here on the blog. Let her know if you want us to post more about your favorite topic - she might know more than a thing or two about it!

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37 Responses
  1. Peter Stein   -   March 10, 2008 at 2:12 am

    wow! this was very helpful! thank you so much, gotta try this one now :)

  2. MediaMisfit   -   March 10, 2008 at 10:47 am

    Quick, simple and affective. I forget about the channels pallet all too often when working in Photoshop.

  3. Jeff Namnum   -   March 10, 2008 at 1:17 pm

    wow, you are the best!!! Like MM above I always forget the channels palette and wow this is a lot easier than zooming in to 4000% magnification ;)

    Thank you.

  4. sol   -   March 10, 2008 at 4:48 pm

    I totally needed this a second ago on a project I spent way too much time on. I’ll do this next time. Thanks!

  5. surferJ   -   March 10, 2008 at 6:58 pm

    This is a fantastic technique, but nothing new. It is admirable that you discovered it for yourself, which is of potentially more value, since it will help you see even more ways of “getting there”.

    Also consider additional tools, like dodge/burn around edges to increase contrast, curves, luminosity selections, etc.

  6. Gino   -   March 10, 2008 at 7:35 pm

    Yes, I wish I had known how to do this a long time ago!

    SurferJ – good idea using the other tools as well

  7. JPOG   -   March 11, 2008 at 12:28 am

    Oh Thank You so much for posting that. It’s really helpful.

  8. GregE   -   March 11, 2008 at 3:42 am

    This is one of the oldest Photoshop techniques on the books. I recall using this technique frequently as far back as Photoshop 3.X.

  9. N3   -   March 11, 2008 at 7:09 pm

    I’m sorry to argue about this, but you have a really simple background, wich actually it’s quite easy to get rid of, with that technique
    why not give us one with a hard background? like a girl with that type of hair in the woods?

    still, nice tutorial mate, simple and noob proof

  10. Scott Williams   -   March 11, 2008 at 7:49 pm

    Wow! Old School! I was trained way back on PS 2.5 (no layers, no history). Everything had to be done in channels. Thanks for the effective quick method. Now I have to go shake off the flashback jittererererers.

  11. Mai   -   March 12, 2008 at 9:57 pm

    Nice alpha channels… Very nice.. I also stumbled upon this rather sexy clipping path tutorial and they also have this tutorial on Image Masking

  12. shital jethva   -   March 19, 2008 at 2:02 am

    wow its very nice and easy trick.. i was searching for this type of solution and at last i got it.
    Thanks buddy.
    good job.
    keep it up!!!

  13. Asa   -   March 26, 2008 at 12:24 am

    Is this possible to do if you’re only using the trial version of CS3?

  14. danny   -   March 27, 2008 at 6:02 am

    my photo blog is http://www.djingen.blogspot.com be my guest. Danny thnx again great idea great work!!

  15. Fozz2k   -   April 5, 2008 at 12:21 pm

    Brilliant!! More like this please! Keep ‘em coming!

  16. Tashina   -   April 29, 2008 at 5:08 pm

    I must be retarded or something I get as far as putting everything in black and then im stuck I cannot get it to allow me to copy and paste nor does it show the outline is this because im using the trial??

  17. flashy   -   May 7, 2008 at 12:55 am

    Amazing design technique! Do you plan offering Flash tutorials next? Keep up the good work!

  18. Harry Roberts   -   May 9, 2008 at 9:19 am

    Wow, pretty nifty! Cheers.

  19. adnai   -   May 19, 2008 at 11:16 am

    i am off to trying it.i hope it works. i will get back to you. for the record…..your choice of image couldnt have been better.

  20. Geoserv   -   June 2, 2008 at 9:15 pm

    STUMBLED!

    Im still learning how to create banners, this is beyond me, thanks for posting though.

  21. Wisanggeni   -   June 5, 2008 at 5:32 am

    Bloody works!
    …and it’s simple too!!

  22. kulpi   -   June 20, 2008 at 7:13 pm

    it easy extract subject when background have one colour, do you know how extract with difficult background? i mean something like this
    http://i193.photobucket.com/albums/z73/kulpi/Untitled-1.jpg

  23. jrey   -   July 9, 2008 at 2:17 am

    thanks of idea.. astig ka!

  24. zark   -   July 10, 2008 at 3:54 pm

    hey…..can any one tell me plz that after selection how to make fill that selection with black ?????plz help me

  25. Diane UHLS   -   July 29, 2008 at 4:21 pm

    How do I subscribe to your feed. I am new to this so I have no idea what that means.

  26. Nikhil   -   December 3, 2008 at 2:47 am

    Wow !!! this is too good way to crop a complex image. Thnx a lot bro. I will using this from now on. Thanx again….

    :):)

  27. maruthi   -   January 14, 2009 at 4:08 am

    this type of tutorial is very useful

  28. priyanka dewatwal   -   March 28, 2009 at 3:02 am

    wow……………this is great. thank u very much……….

  29. vee   -   June 26, 2009 at 5:54 pm

    its not working out how do i fill the black

  30. raj   -   July 9, 2009 at 7:12 am

    im nt getting the exact image …but a black one..plz help me in getting the image..!

  31. Kym   -   October 15, 2009 at 8:48 am

    ok so i was tryin this with yer exact same picture and i dont know what im doing wrong. im doing everything i can by what u said but its selecting the BACKGROUND instead of HER. i dont get this im so cofused. i dont understand how to use the levels thing too. someone help?

  32. Kym   -   October 15, 2009 at 9:07 am

    honestly this makes not sense to me. i dont really know photo shop well so this is useless to me unless u go MORE indepth. i try the same thing on my own picture and the entire thing goes freaking BLACK. on yers i do the same exact thing u are from the directions and its trying to take the background and when i do happen to get the full girl there is no color its all shaded white n crap. so e mail me back or something cuz i’d like to figure this out. seems simple but really its not imo

  33. renz   -   October 28, 2009 at 6:59 pm

    Awesome maN

  34. er   -   October 29, 2009 at 12:39 pm

    Noob here, don’t have a fucking clue what’s going on. I have my image and this layer level. What the fuck am I supposed to do now? Copy and paste? Ta fuck?

  35. er   -   October 29, 2009 at 12:44 pm

    I don’t get it. I think there are steps missing, big time.

  36. rush   -   October 30, 2009 at 8:59 am

    dude..this is a nice work…but i still have a question…who is that girl..i want to know her name…thanks for your attention

  37. bL@cK_cuRR@nt_l!p$   -   January 15, 2010 at 8:01 pm

    thnx a ton.. really helpful..