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.
Keywords from Image Description:
Jpegtextartifacts. Illustration of the effect of JPEG compression on slightly noisy image with mixture of text and whitespace Text is screen capture from conversation with noise added intensity in Paint NET One frame of the animation was saved as JPEG quality and reloaded Both frames were then zoomed by factor of nearest neighbor