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halftone

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halftone


  4  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Half  tone  \Half  tone\,  or  Half-tone  \Half"-tone`\,  n. 
  1.  (Fine  Arts) 
  a  An  intermediate  or  middle  tone  in  a  painting, 
  engraving,  photograph,  etc.;  a  middle  tint,  neither 
  very  dark  nor  very  light. 
  b  A  half-tone  photo-engraving. 
 
  2.  (Music)  A  half  step. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Half-tone  \Half"-tone`\,  a. 
  Having  consisting  of  or  pertaining  to  half  tones;  specif. 
  (Photo-engraving),  pertaining  to  or  designating  plates, 
  processes,  or  the  pictures  made  by  them  in  which  gradation 
  of  tone  in  the  photograph  is  reproduced  by  a  graduated  system 
  of  dotted  and  checkered  spots,  usually  nearly  invisible  to 
  the  unaided  eye,  produced  by  the  interposition  between  the 
  camera  and  the  object  of  a  screen.  The  name  alludes  to  the 
  fact  that  this  process  was  the  first  that  was  practically 
  successful  in  reproducing  the  half  tones  of  the  photograph. 
 
  From  WordNet  r  1.6  [wn]: 
 
  halftone 
  n  1:  a  print  obtained  from  photoengraving 
  2:  the  etched  plate  used  to  reproduce  an  illustration  [syn:  {halftone 
  engraving},  {photoengraving}] 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  halftone 
 
    The  reproducion  of  {greyscale}  {images}  using  dots 
  of  a  single  shade  but  varying  size  to  simulate  the  different 
  shades  of  grey. 
 
  {Laser  printers}  that  cannot  print  different  sized  dots, 
  halftones  are  produced  by  varying  the  numbers  of  dots  in  a 
  given  area. 
 
  This  process  is  also  used  to  produce  a  black  and  white  version 
  of  a  colour  original  using  shades  of  grey  in  place  of  colours. 
 
  See  also  {device  independent  bitmap}. 
 
  (1996-09-20) 
 
 




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