Here is another Photofiltre tutorial to be shared with everyone!
One thing that I hate a lot of the time is when I have a picture that is too dark to use for anything. This method uses Gamma Correction to make the picture lighter overall.
Using settings like the ones shown provided me with a better picture. You'll definitely have to mess with the settings so that it works the best with the picture you are working on.
Don't lighten the picture up too much or you'll lose quality and no one wants that!
Happy Photo editing!