ITU T.871:2011
ITU T.871:2011 Information Technology - Digital Compression And Coding Of Continuous-Tone Still Images: Jpeg File Interchange Format (Jfif) Describes a file format, referred to as the JPEG File Interchange Format (JFIF), for file-based interchange of images encoded according to the JPEG image coding standard (ITU-T T.81/ISO/IEC 10918-1).