bitmap wikipedia - EAS

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  1. 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 bits. Now, along with pixmap, it commonly refers to the similar concept of a spatially mapped array of pixels.
    en.wikipedia.org/wiki/Bitmap
    en.wikipedia.org/wiki/Bitmap
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    What is a bitmap file?
    A bitmap is a type of colour 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 bits. Now, along with pixmap, it commonly refers to the similar concept of a spatially mapped array of pixels.
    en.wikipedia.org/wiki/Bitmap
    What is a bitmap array?
    Pixel array (bitmap data) The pixel array is a block of 32-bit DWORDs, that describes the image pixel by pixel. Usually pixels are stored "bottom-up", starting in the lower left corner, going from left to right, and then row by row from the bottom to the top of the image.
    en.wikipedia.org/wiki/BMP_file_format
    What is the history of bitmap index?
    The concept of bitmap index was first introduced by Professor Israel Spiegler and Rafi Maayan in their research "Storage and Retrieval Considerations of Binary Data Bases", published in 1985. The first commercial database product to implement a bitmap index was Computer Corporation of America's Model 204.
    en.wikipedia.org/wiki/Bitmap_index
    What is bitmap index in SQL?
    A bitmap index is a special kind of database index that uses bitmaps. Bitmap indexes have traditionally been considered to work well for low- cardinality columns , which have a modest number of distinct values, either absolutely, or relative to the number of records that contain the data.
    en.wikipedia.org/wiki/Bitmap_index
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    https://en.wikipedia.org/wiki/Bitmap

    In computing, a bitmap is a mapping from some domain (for example, a range of integers) to bits. It is also called a bit array or bitmap index. As 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

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    In typical uncompressed bitmaps, image pixels are generally stored with a variable number of bits per pixel which identify its color, the color depth. Pixels of 8 bits and fewer can represent either grayscale or indexed color.

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    Microsoft has defined a particular representation of color bitmaps of different color depths, as an aid to exchanging bitmaps

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    Free space bitmap, an array of bits that tracks which disk storage blocks are in-use
    Raster graphics
    Raster scan

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  4. https://en.wikipedia.org/wiki/Bitmap_(disambiguation)

    Bitmap is a type of memory organization or image file format used to store digital images.
    Bitmap or bit map may also refer to:
    • Bit array, general bit-addressed data structures
    • Bitmap graphics, also known as raster graphics, an image represented by a generally rectangular grid of pixels (co-sitting points of colors)

  5. https://simple.wikipedia.org/wiki/Bitmap

    Bitmap From Simple English Wikipedia, the free encyclopedia The term Bitmap can have different meanings: A suite of bits which all have the same meaning; commonly called bit array A binary …

  6. https://sv.wikipedia.org/wiki/Bitmap

    Bitmap Wikipedia Bitmap Bitmap är en grupp av lagringsformat för digitala bilder. En bitmap består av ett rutnät av fyrkantiga bildelement, ofta kallade pixlar; för varje enskilt bildelement …

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