Page 182 - Intelligent Communication Systems
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CHAPTER  12/COMPUTER VISION  153









































         FIGURE  12.3  Smoothing of a histogram.

        Figure  12.5. A binary value is obtained as follows:








        12.2.6 Organizational Dither  Method
        The organizational  dither method decides the binary value of a pixel by  consider-
        ing the coordinate information of the pixel. We compare the value of the pixel with
        the corresponding  value of a dither  matrix. The value  1 is  assigned  to the  pixel
        when  its  value  is  greater  than  or  equal  to  the  corresponding  value  of  the  dither
        matrix; the value 0 is assigned  when the pixel's value is  smaller  than the  corre-
        sponding value of a dither matrix, where the value g(i, j) of a pixel is normalized
        toQ<g(iJ)<\5.
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