Fig. 1
From: Image-centric compression of protein structures improves space savings
Flow chart diagram of the PIC compression algorithm. \(\mu\) is the global centroid of all atoms used to center the image, and \(r^*\) is the maximal radial component that needs to be stored after centering. The basic intuition is to store atoms and their coordinate data in a pixel corresponding to the radial coordinates, and then compress with PNG