The BMP file format (Windows bitmap) is used internally in the Microsoft Windows operating system to handle graphics images. These files are typically not compressed, resulting in large files. The main advantage of BMP files is their wide acceptance, simplicity, and use in Windows programs. - [ Preview ] http://support.microsoft.com/kb/q81498/ |
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Visit PurYel Glossary for the full definition of Image File Formats. - [ Preview ] http://glossary.puryel.com/Image_File_Formats.html |
The Exif (Exchangeable image file) format is an algorithm incorporated in the JPEG software used in most cameras. Its purpose is to record and to standardize the exchange of data between digital cameras and editing and viewing software. The data are recorded for individual images and includes such things as: camera settings, time and date, shutter speed, exposure, image size, compression, name of camera, color information, etc. - [ Preview ] http://www.exif.org |
The GIF (Graphics Interchange Format) is limited to an 8-bit palette, or 256 colors. This makes the GIF format suitable for storing graphics with relatively few colors such as simple diagrams, shapes, logos and cartoon style images. The GIF format supports animation and is still widely used to provide image animation effects. - [ Preview ] http://www.w3.org/Graphics/GIF/spec-gif89a.txt |
JPEG (Joint Photographic Experts Group) is a commonly used method of compression for photographic images. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10 to 1 compression with little perceivable loss in image quality. JPEG is also the most common image format used on the Internet. - [ Preview ] http://www.jpeg.org |
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The PNG (Portable Network Graphics) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace the GIF format, as an image-file format not requiring a patent license. PNG supports palette-based (palettes of 24-bit RGB colors), greyscale or RGB images. PNG was designed for transferring images on the Internet, not professional graphics, and so does not support other color spaces such as CMYK. - [ Preview ] http://www.libpng.org/pub/png/ |
The portable pixmap file format (PPM), the portable graymap file format (PGM) and the portable bitmap file format (PBM) specify rules for exchanging graphics files. They provide very basic functionality and serve as a least-common-denominator for converting pixmap, graymap, or bitmap files between different platforms. Several applications refer to them collectively as the PNM format (portable anymap). - [ Preview ] http://netpbm.sourceforge.net/doc/pnmtotiff.html |
RAW refers to a family of raw image formats that are options available on some digital cameras. These formats usually use a lossless or nearly-lossless compression, and produce file sizes much smaller than the TIFF formats of full-size processed images from the same cameras. The raw formats are not standardized or documented, and differ among camera manufacturers. - [ Preview ] http://www.openraw.org |
