RGB to PNG Converter
Convert your RGB images to PNG format online for free
RGB
Silicon Graphics RGB
The SGI image format is a graphics file format for Silicon Graphics workstations. It is the native raster graphics file format for the Silicon Graphics IRIS GL and OpenGL libraries.
PNG
Portable Network Graphics
PNG is a raster-graphics file-format that supports lossless data compression. PNG was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF).