Examples of OnDemandHistogram3D

net.sourceforge.jiu.color.data.OnDemandHistogram3D
A data class for a three-dimensional histogram, creating counters on demand only, not allocating counters for all possible entries at the beginning. The creation on demand happens to save space.
Note: Rewrote from scratch for version 0.15.0 to use hash tables instead of int arrays. New version creates and throws away a lot of objects, which had been a problem with early JVMs but should be OK these days. @author Marco Schmidt

Examples of net.sourceforge.jiu.color.data.OnDemandHistogram3D

   * @return if this image can be losslessly converted to a Paletted8Image
   */
  private boolean isRgb48Paletted8(RGB48Image in)
  {
    int uniqueColors = 0;
    hist = new OnDemandHistogram3D(255, 255, 255);
    for (int y = 0; y < in.getHeight(); y++)
    {
      for (int x = 0; x < in.getWidth(); x++)
      {
        int red = in.getSample(RGBIndex.INDEX_RED, x, y) >> 8;

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Examples of net.sourceforge.jiu.color.data.OnDemandHistogram3D

  }


  private boolean isRgb24Paletted8(RGB24Image in)
  {
    int uniqueColors = 0;
    hist = new OnDemandHistogram3D(255, 255, 255);
    for (int y = 0; y < in.getHeight(); y++)
    {
      for (int x = 0; x < in.getWidth(); x++)
      {
        int red = in.getSample(RGBIndex.INDEX_RED, x, y);

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Examples of net.sourceforge.jiu.color.data.OnDemandHistogram3D

          image.getMaxSample(index2) + 1, 
          image.getMaxSample(index3) + 1);
      }
      else
      {
        hist = new OnDemandHistogram3D(image.getMaxSample(index1) + 1, 
          image.getMaxSample(index2) + 1, 
          image.getMaxSample(index3) + 1);
      }
    }
  }

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