Png

This isn't a medical image format either but included here as a replacement for the (formerly) patent burdened Gif format. The format does require the libpng library being installed on your system. Although it will read most files, internally we only work with a 256 indexed palette. And to simplify things further, no exotic features like alpha channels or interlacing is supported. Contrary to GIF, this is a single image format. So writing a volume to PNG will result in separate files for each image slice. Just so you know, we do include patient/scan info in a comment chunck.