A greyscale image (or grayscale image) is one made up only of shades of grey, i.e. a (so called) bla
Greyscale
A CCD or Charge-Coupled Device is an analog electronic device that can be used as the image sensor i ...
A number of greys ranging from black to white. An 8 bit greyscale image could have 254 greys plus black and white for a total of 256 possible values. See also bitonal.
hand scanner
A hand-held, generally low quality, device for digitising images.
It really only records the color grey and its 256 levels of variance. Color is simply determined by the which photosensor was hit and for how long and how intensely. A digital sensor records a greyscale image.
 See also: Scale, Image, Camera, View, Digital
  
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