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2 definitions found
 for bitmap
From WordNet (r) 3.0 (2006) :

  bitmap
      n 1: an image represented as a two dimensional array of
           brightness values for pixels [syn: bitmap, electronic
           image]

From The Free On-line Dictionary of Computing (30 December 2018) :

  bitmap
  
      A data file or structure which
     corresponds bit for bit with an image displayed on a
     screen, probably in the same format as it would be stored in
     the display's video memory or maybe as a device independent
     bitmap.  A bitmap is characterised by the width and height of
     the image in pixels and the number of bits per pixel which
     determines the number of shades of grey or colours it can
     represent.  A bitmap representing a coloured image (a
     "{pixmap") will usually have pixels with between one and
     eight bits for each of the red, green, and blue components,
     though other colour encodings are also used.  The green
     component sometimes has more bits that the other two to cater
     for the human eye's greater discrimination in this component.
  
     See also vector graphics, image formats.
  
     (1996-09-21)
  

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