Image file format
Some digital file formats support only two color (black and white) images, some support greyscale images, and some support multi-color images. Some digital file formats include built in data compression, and are organized to facilitate that compression. Some include metadata — information about the image.
Popular image file formats
Currently popular image file formats include:
- Bitmap (BMP) files — a nearly raw representation of the displayed pixels
- JPEG (JPG) files — include built-in lossy compression with a variable degree of quality. The name stands for "Joint Picture Experts Group", the committee which created the format.
- GIF files — "Graphics Interchange format" — includes a compression routine, at one time threatened by patent issues. Allows animated images.
- PNG files — "Portable Network Graphic" — open format.
- TIFF files — "Tagged image file format"
- Windows metafile (WMF) files
- SVG files — "Scalable Vector Graphics"