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Use Paint.NET to Remove Red Eye From Flash Photography

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Going to a lot of night parties? We all know that the flash will give your pictures red eye, but here’s a simple way to use freeware Paint.NET to remove the red eye from any of your pictures.

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Paint.NET has a simple tool for doing this called the “Color Replacement Tool,” illustrated here. Shortcut key r will give it to you.

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You can adjust the colors you want to change in your colors panel. In the illustrated image, the Primary color should be black, and the Secondary color should be red. This means I will be switching the reds in my image with the black in my color palette.

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Adjusting “Brush Width” will also make it easier to paint. Since the eyes in this image are quite large, a width of 100 seems appropriate. Adjust the tolerance or the Secondary color if this technique doesn’t remove the red eye from your image.

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With a single brush stroke, the red eye is gone.

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Painting over both eyes takes mere seconds. If you don’t already have Paint.NET, it is a free download for Windows.

Eric Z Goodnight is an Illustrator and Graphics Geek who hopes to make Photoshop more accessible to How-To Geek readers. When he’s not headbanging to heavy metal or geeking out over manga, he’s often off screen printing T-Shirts.

  • Published 11/1/10

Comments (6)

  1. yethz

    the red eye color is like painted not a real red eye from a digital cam :D
    its only an opinion though, nice tip… thanks..

  2. Human

    No, you should say the red eyes are like terminator’s eyes…

  3. TimeRack Inc

    great tool but this facility is by default in window vista. yet helpful tool who don’t know.

  4. Michael Bæk

    Windows Vista is an OS not an image editor.

  5. JTF

    E-Z G, thanks for the tip. We use paint.net at work as an editor and at home for those who don’t have photoshop on the computer…

  6. 0_~

    @Michael
    Thanks for the update!

    I think he means its default in the built-in image viewer.

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