The standard is based on the Discrete Cosine Transform (DCT) algorithm, which has been the backbone of digital image proliferation on the internet since 1992 .
Most JPEG files contain EXIF data , which can store interesting "hidden" features such as the exact camera settings, date, time, and even the GPS coordinates of where the photo was taken . 20918011_yvq738_003.jpg
The filename appears to be a generic system-generated identifier, making it difficult to pinpoint a specific "interesting feature" without the image itself. However, based on the JPEG (.jpg) format, here are the core technical features that make this type of file unique: Key Features of JPEG Files The standard is based on the Discrete Cosine