Limb darkening compensation

Uses
- White-light images of the sun
- Functions

When a uniformly outwards radiation sphere is observed from far away, the resulting image is a disk with a brightness maximum in the center, from where it decreases radially until it reaches zero at the edge of the disk. This phenomenon is known as limb darkening . Wikipedia provides a detailed explanation and a technique for compensation that creates a uniformBrightnessImage.

Step
 limbDarkeningCompensation : whiteLightImage → uniformBrightnessImage