Whidbey Island video camera variance image
![View looking down at a rocky beach at low tide, from up high on a cliff.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/Whidbey-2_var.jpg?itok=j74sVVPf)
Detailed Description
Variance image: the standard deviation of pixel intensity throughout the video, and it is useful for determining how much variation or movement is occurring at a given location.
Sources/Usage
Public Domain.