Besides BMP, other file formats that store literal bitmaps include InterLeaved Bitmap (ILBM), Portable Bitmap (PBM), X Bitmap (XBM), and Wireless Application Protocol Bitmap (WBMP). Many graphical user interfaces use bitmaps in their built-in graphics subsystems for example, the Microsoft Windows and OS/2 platforms' GDI subsystem, where the specific format used is the Windows and OS/2 bitmap file format, usually named with the file extension of. Raster images in general may be referred to as bitmaps or pixmaps, whether synthetic or photographic, in files or memory. Now, along with pixmap, it commonly refers to the similar concept of a spatially mapped array of pixels. The term bitmap comes from the computer programming terminology, meaning just a map of bits, a spatially mapped array of bits. Ī bitmap is a type of memory organization or image file format used to store digital images. In some contexts, the term bitmap implies one bit per pixel, whereas pixmap is used for images with multiple bits per pixel. In such a case, the domain in question is the array of pixels which constitute a digital graphic output device (a screen or monitor). It is also called a bit array or bitmap index.Īs a noun, the term "bitmap" is very often used to refer to a particular bitmapping application: the pix-map, which refers to a map of pixels, where each one may store more than two colors, thus using more than one bit per pixel. ![]() ![]() In computing, a bitmap is a mapping from some domain (for example, a range of integers) to bits. ![]() For other uses, see Bitmap (disambiguation).
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