what is the difference between jpg and png filters

here some information from internet: PNG= Portable Network Graphics. the third graphics standard supported by the Web. It provides greater depth of color, catering to images up to 24 bit in color JPG or JPEG = Joint Photographic Experts Group. The JPEG format, with its support for 16.7 million colors, is primarily intended for photographic images.

JPG is a lossy compression algorithm since PNG is a lossless compression method, in JPG you can control the compression ratio in PNG not, is fixed, in addition PNG format support transparency and JPG not. You can search the web for study how exactly works each format. Good luck.

jpg format is more heavier than png