Glossary

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JPEG

JPEG is an image file format commonly used for compressing photographic images for low bandwidth applications such as the Web. JPEG stands for "Joint Photographics Expert Group", the body who created the JPEG standard. JPEG uses a lossy compression algorithm based on a Discrete Cosine Transform to compress its images. A new standard called JPEG2000 exists, based on superior Wavelet compression and having more features. JPEG2000 is not well supported by software.

JPG

(JPEG) A standardized image compression mechanism designed for compressing either full-color or grayscale photographic images, often for use on the Web. JPG is "lossy," meaning that the decompressed image is not quite of the same quality as the original image.