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A bit array (also known as bitmask, [1] bit map, bit set, bit string, or bit vector) is an array data structure that compactly stores bits.It can be used to implement a simple set data structure.
In some contexts, the term bitmap implies one bit per pixel, whereas pixmap is used for images with multiple bits per pixel. [3] [4] A bitmap is a type of memory organization or image file format used to store digital images. The term bitmap comes from the computer programming terminology, meaning just a map of bits, a spatially mapped array of ...
The development of fast methods for various bit blit operations gave impetus to the evolution of computer displays from using character graphics to using raster graphics (bitmap) for everything. Machines that rely heavily on the performance of 2D graphics (such as video game consoles ) often have special-purpose circuitry called a blitter .
A binary image can be stored in memory as a bitmap: a packed array of bits. A binary image of 640×480 pixels has a file size of only 37.5 KiB, and most also compress well with simple run-length compression. A binary image format is often used in contexts where it is important to have a small file size for transmission or storage, or due to ...
ICO and CUR files contain bitmaps starting with a BITMAPINFOHEADER. Many older graphical user interfaces used bitmaps in their built-in graphics subsystems; [25] 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 ...
Since the bitmap never grows, shrinks or moves, fewer lookups are required to find the desired information. Low storage overhead as a fraction of the drive size: Even with relatively small sector sizes, the storage space required for the bitmap is small. A 2 TB drive could be fully represented with a mere 64 MB bitmap (for 4096-byte sectors).
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These textures are created by artists or designers using bitmap editor software such as Adobe Photoshop [2] or GIMP, [3] or simply by scanning an image and, if necessary, retouching it on a personal computer. Bitmap images are typically made up of pixels, and each individual pixel represents a single point of color. By adjusting their size ...