Glossary
Welcome to the glossary of technical terms. Browse through the alphabetic list to find the term(s) you’re looking for.
J
- JBIG (Joint Bi-level Image Experts Group):
- .A group formed in 1988, to establish a standard for the progressive encoding of bi-level image data. JBIG is also the name given to the codec created by this group. Also known as JPG 2000.
- JFIF (JPEG File Interchange Format):
- A minimal file format which enables JPEG bitstreams to be exchanged between a wide variety of platforms and applications.
- Jaggies:
- Individual pixels displayed in an image with low resolution. The appearance of pixels in an image cause lines and curves to look jagged.
- JPEG (Joint Photographic Experts Group):
- A file format developed by this group for compressing full-color bit-mapped graphics. JPEG has become the most popular and well-known image format. As such, it is supported by all image viewers including ACDSee digital camera software.
- JPEG Compression:
- A file compression standard established by the Joint Photographic Experts Group that uses a combination of DCT and Huffman encoding to compress images. JPEG is a "lossy" compression algorithm, meaning that it slightly degrades image quality.
