This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Speckle simulation. Speckle pattern obtained with the following Mathematica code superficie Table Fori Forj superficie False own assumed Berto Speckle Images with Mathematica source code
Page 2023 Free-images.com. All images are Public Domain