darken / brighten

Darken/Brighten is a software plugin that specializes in color effects. It may initially come across as tedious with its basic functions, which include darkening and brightening parts of your clip. However, this plugin has the potential to do so much more. It rises above most other plugins that only offer a singular function.
The plugin allows parallel darkening and brightening with relative and absolute values. This opens the door to applying unique special effects that would typically require multiple passes and various plugins.
The algorithm utilized by this software first applies relative adjustments, without any clipping to the brightness of pixels. It then applies absolute adjustments, and only then clips the pixel's value to a legal range.
Overall, Darken/Brighten is a powerful and reliable plugin that requires an iMovie 3.0 or later software to function.