[[JPEGadni]] (Joint Photographic Experts Group) is a [[lossy compression]] method; JPEG-compressed images are usually stored in the '''[[JFIF]]''' (JPEG File Interchange Format) or the '''[[Exif]]''' (Exchangeable image file format) file format. The JPEG [[filename extension]] is '''JPG''' or '''JPEG'''. Nearly every digital camera can save images in the JPEG format, which supports eight-bit grayscale images and 24-bit color images (eight bits each for red, green, and blue). JPEG applies lossy compression to images, which can result in a significant reduction of the file size. Applications can determine the degree of compression to apply, and the amount of compression affects the visual quality of the result. When not too great, the compression does not noticeably affect or detract from the image's quality, but JPEG files suffer [[Generation loss|generational degradation]] when repeatedly edited and saved. (JPEG also provides lossless image storage, but the lossless version is not widely supported.)