= Joint Photographics Expert Group. Data format and compression method for reducing the amount of image data. Information is lost during compression. At very high compression, the information loss is visible through a matrix pattern.

Compression rates determine the quality

The compression rates and the different quality levels can be set in application programs. Acceptable compression rates depend on the motif. Digital cameras often use JPEG as the data format. In the internet JPEG is used as a data format for halftone images and graphics with smooth tonal transitions. A further development of JPEG is JPEG2000.