Binary image

A binary image is a digital image that has only two possible values for each pixel. cite news |url=http://www.codersource.net/csharp_color_image_to_binary.aspx |title=Conversion of a Color Image to a Binary Image |publisher=CoderSource.net |date=2005-04-18 |accessdate=2008-06-11] Typically the two colors used for a binary image are black and white though any two colors can be used. The color used for the object(s) in the image is the foreground color while the rest of the image is the background color.

Binary images are also called "bi-level" or "two-level". (The names "black-and-white", "B&W", monochrome or monochromatic are often used for this concept, but may also designate any images that have only one sample per pixel, such as grayscale images.) In Photoshop parlance, a binary image is the same as an image in "Bitmap" mode.

Binary images often arise in digital image processing as masks or as the result of certain operations such as segmentation, thresholding, and dithering. Some input/output devices, such as laser printers, fax machines, and bilevel computer displays, can only handle bilevel images.

The interpretation of the pixel's binary value is also device-dependent. Some systems interprets the bit value of 0 as black and 1 as white, while others reversed the meaning of the values. These are known as "vanilla" and "chocolate" flavours in the TWAIN standard PC interface for scanners and digital cameras.

A binary image is usually stored in memory as a bitmap, a packed array of bits.

Binary images can be interpreted as subsets of the "two-dimensional integer lattice" "Z"2; the field of morphological image processing was largely inspired by this view.

ee also

* Halftone
* Grayscale
* Connected component labeling
* Netpbm format
* JBIG/JBIG2
* X BitMap

References


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Binary Image —   An electronic image which is stored in the computer as 0s and 1s (representing black and white) …   International financial encyclopaedia

  • Image registration — Registering and summing multiple exposures of the same scene improves signal to noise ratio, allowing to see things previously impossible to see. In this picture, the distant Alps are made visible, although they are tens of kilometers into the… …   Wikipedia

  • Image and Scanner Interface Specification — ISIS ( Image and Scanner Interface Specification ) is an industry standard interface for image scanning technologies, developed by Pixel Translations in 1990 (today: EMC captiva).ISIS is an open standard for scanner control and a complete image… …   Wikipedia

  • Binary space partitioning — (BSP) is a method for recursively subdividing a space into convex sets by hyperplanes. This subdivision gives rise to a representation of the scene by means of a tree data structure known as a BSP tree.In simpler words, it is a method of breaking …   Wikipedia

  • Binary Research — Ltd was a company founded in Auckland, New Zealand by Murray Haszard in 1991 after the sale of his previous company, B32 Software.Binary Research initially considered developing competitors to the file transfer programs Blast and Laplink. The… …   Wikipedia

  • Binary Pattern (Image generation) — Binary pattern is an image produced by a formula that includes binary operations and results in a 32bit integer number. These patterns are closely tied to the 32bit RGB color system. These patterns may be used with any integer numbers.The most… …   Wikipedia

  • Image file formats — are standardized means of organising and storing images. This entry is about digital image formats used to store photographic and other images; (for disk image file formats see Disk image). Image files are composed of either pixel or vector… …   Wikipedia

  • Binary Large Object — Le BLOB, pour (en) Binary Large OBject, est un type de donnée permettant le stockage de données binaires (le plus souvent des fichiers de type image, son ou video) dans le champ d une table d une base de données. Articles connexes CLOB …   Wikipédia en Français

  • Binary Format for Scenes — (BIFS) ist eine auf VRML97 basierende und in MPEG 4 part 11 (ISO/IEC 14496 11, „Szenenbeschreibung und Anwendungs Engine“) standardisierte Beschreibungssprache für zwei und dreidimensionale multimediale audiovisuelle interaktive Inhalte. Sie wird …   Deutsch Wikipedia

  • Binary file — binaries redirects here. For double stars, see Binary star. .bin redirects here. For The CD image format, see Disk image. A hex dump of the 318 byte Wikipedia favicon, or …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.