The Joint Photographic Experts Group (JPEG) isn’t a company or a product—it’s a standards committee. Its origin sits at the intersection of early digital imaging, telecommunications, and the need for efficient data compression.
In the late 1970s and 1980s, digital imaging was emerging across industries—broadcast media, medical imaging, satellite imagery, and early personal computing. The issue was simple but critical: image files were enormous relative to the storage capacity and transmission speeds of the time.
To put it into context, sending a single uncompressed color image over a network in the 1980s could take minutes—or longer. Storage was expensive, bandwidth was limited, and there was no universal format for compressing photographic images efficiently.
JPEG was formed in 1986 as a collaborative effort between two major international standards bodies:
These organizations brought together engineers, researchers, and industry experts to define a standardized method for compressing continuous-tone images (i.e., photographs, not simple graphics).
The goal wasn’t just compression—it was interoperability. Different systems, devices, and software needed a common language for images.
JPEG introduced a method of lossy compression, meaning it reduces file size by discarding some image data—specifically, data that the human eye is less sensitive to.
Its core innovations include:
This made it possible to shrink images by 10x or more while maintaining acceptable visual quality—a game-changer for digital media.
The JPEG standard was formally published in 1992 (ISO/IEC 10918). From there, adoption accelerated rapidly: