GIMP tricks: Teeth whitening

[ Thursday, 11 October 2007, titter ]


Here is another article of our “GIMP tricks” series. This time you are going to learn a simple trick: how to make your teeth look really white on a photograph. By the way, perhaps it’s the right time to visit a dentist?

Author: @Cakper

First you will need an image of yellow teeth. Here you can download the one I used in this tutorial: The jaw image

  1. Open the image you have downloaded or the one you want to correct. Toggle the view to “QMask” by pressing the little square shown in the picture below.

    qmask

    The whole image should become red. Don’t be afraid, everything is OK.

  2. Use the “soft” brush – Circle Fuzzy (here you can use 19 as the value). As a foreground color, choose white. It is used to mark the selection on the mask.
  3. Now outline the tooth as it is shown in the picture below.

    tooth

    It is not as simple as it may seem at first glance, so when you outline too much just switch the foreground color to black and correct the border.

  4. When you are finished with outlining, to save your time, use a wider brush to color the rest of the tooth in the center.

    whiten_tooth

  5. If you successfully manage to color the whole tooth, toggle the view back to normal. Now the tooth is selected! This is the power of the quick mask view.

    selected_tooth

  6. And now the most important thing in the tutorial!
    From the menu choose: Layer->Colors->Brigthness-Contrast.
    Set the Brightness to +80 and the Contrast to -10.

    BrightnessContrast

    These parameters are the ones I used here, but naturally you can experiment and adjust your image to your requirements.
    That’s the end! Easy, isn’t it?

    whiten_tooth_final

    Of course, don’t whiten teeth one by one. To increase the speed of whitening the whole jaw, color the whole region you intend to whiten in the qmask view.

In my case, the final effect is like this:

jaw

Good luck!

Translated by titter, proof-read by Jake Conroy

This article has been first published in Gimpuj.info, a Polish online GIMP forum. You can see the original tutorial (in Polish) here: Wybielanie zębów [retusz cz1]. The article has been slightly modified compared with the original version by the PolishLinux team.

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45 Comments

fold this thread Anonymous  Saturday, 13 October 2007 o godz. 12:48 am #  Add karma Subtract karma  +0

Would it be easier to get some baking powder.

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fold this thread Marcus  Saturday, 13 October 2007 o godz. 6:42 am #  Add karma Subtract karma  +0

Instead of making “hey look, my mouth glows in the dark”-teeth by cranking up the brightness a ton I’d prefer to first adjust the saturation by -20 or -30 and then up the brightness just a tad.

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fold this thread Maarten Kooiker  Saturday, 13 October 2007 o godz. 10:15 am #  Add karma Subtract karma  +0

Nice tutorial! I guess you won’t get offended if I say I don’t like the picture, but as an example to explain the technique it’s perfect! ;)

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fold this thread Doc  Sunday, 27 April 2008 o godz. 11:47 am #  Add karma Subtract karma  +0

GREAT site. your photos are great. Some of these teeth look like space alien creature teeth, lol.

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fold this thread infohappy  Tuesday, 29 April 2008 o godz. 1:49 pm #  Add karma Subtract karma  +1

Wish it was as easy in real life, though.

infoHappy

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fold this thread karaaaaaaaaaaaaa  Sunday, 6 July 2008 o godz. 4:42 am #  Add karma Subtract karma  +0

just use dodge tool set to midtones.

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fold this thread Josh Miller  Thursday, 20 November 2008 o godz. 5:30 pm #  Add karma Subtract karma  +0

Why act like u have white teeth? Get white teeth check this out
http://clearblogs.com/whiterteeth12/156409/Teeth+Bleaching+Free+Trial+Offer.html

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fold this thread Eric  Tuesday, 23 December 2008 o godz. 8:41 am #  Add karma Subtract karma  +0

Outstanding tutorial. It took 5 minutes to complete the steps and I am very satisfied with the results. Thanks a million!

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fold this thread Hampaiden  Thursday, 26 November 2009 o godz. 10:43 pm #  Add karma Subtract karma  +0

Use dodge tool set to midtones its mutch better.

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fold this thread Caroline Bryant  Thursday, 13 May 2010 o godz. 6:26 pm #  Add karma Subtract karma  +0

Most teeth whitening products on the market are made of up Peroxide which can increase tooth sensitivity.,`*

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fold this thread Adam Moore  Wednesday, 6 October 2010 o godz. 7:05 pm #  Add karma Subtract karma  +0

the best teeth whitening agents are still based on peroxides-~~

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fold this thread Carpet Extractor   Wednesday, 20 October 2010 o godz. 9:31 pm #  Add karma Subtract karma  +0

teeth whitening may also cause tooth sensitivity because most dentistst use peroxide based whiteners-`,

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fold this thread prefer to  Tuesday, 2 November 2010 o godz. 7:37 am #  Add karma Subtract karma  +0

I had excellent results using the whitening gel. My teeth are whiter than I’d hoped. It beats other whitening kits I’ve ordered previously… HANDS DOWN!

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Great tutorial thanks. I just touched up a photo for a calendar I’m doing. Three people in the photo but one with noticeably yellow teeth. Looks good now and it’s not obvious it’s been touched up. I’ll have to see how it looks on paper but looks great. Thanks again.

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