Graphics: Removing Gradient Banding

From FlightSim

There are two ways to remove banding. Both may not work on a given application.

1. Select the area with banding. Apply 3-5 percent of Gaussian noise. The noise pixels will often break up the bandings and produce a smoother appearance.

2. This is the likely method to use for MSFS using a final bitmap with 256 colors. Select the area with banding. Apply 50-75 percent motion blur at an angle 90-degrees to the banding.

Both methods may require experimenting with the values given.

The image below shows the left half of a graphic with banding. The right half was identical until motion blur was applied.