Examples of net.sourceforge.jiu.data.Palette

net.sourceforge.jiu.data.Palette
This class represents a palette, a list of RGB colors. An RGB color here has three int values for its red, green and blue intensity. Each intensity value must be larger than or equal to zero and smaller than or equal to the maximum intensity value that can be given to the constructor {@link #Palette(int,int)}. This maximum value is typically 255. Note that the number of entries in a palette is restricted only by the element index type int so that palettes with more than 256 entries are no problem. When accessing (reading or writing) samples of this palette, use the constants {@link #INDEX_RED}, {@link #INDEX_GREEN} and {@link #INDEX_BLUE} ofthis class to define a color channel. @author Marco Schmidt @see net.sourceforge.jiu.data.PalettedImage

  {
    if (out == null)
    {
      out = (Paletted8Image)in.createCompatibleImage(in.getWidth(), in.getHeight());
    }
    Palette palette = out.getPalette();
    int numSamples = palette.getNumEntries();
    final int[] LUT = createLookupTable(numSamples, brightness);
    for (int c = 0; c < 3; c++)
    {
      for (int i = 0; i < palette.getNumEntries(); i++)
      {
        palette.putSample(c, i, LUT[palette.getSample(c, i)]);
      }
    }
    for (int y = 0; y < in.getHeight(); y++)
    {
      for (int x = 0; x < in.getWidth(); x++)

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    {
      paletteSize = numUniqueColors;
    }
    RGBColorList list = new RGBColorList(hist);
    list.sortByCounter(0, list.getNumEntries() - 1);
    Palette result = new Palette(paletteSize);
    int paletteIndex = paletteSize - 1;
    int listIndex = list.getNumEntries() - 1;
    while (paletteIndex >= 0)
    {
      RGBColor color = list.getColor(listIndex--);
      result.put(paletteIndex--, 
        color.getSample(RGBIndex.INDEX_RED),
        color.getSample(RGBIndex.INDEX_GREEN),
        color.getSample(RGBIndex.INDEX_BLUE)
      );
    }

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  public Palette createPalette()
  {
    if (palette == null)
    {
      int numValues = assignPaletteIndexValues(root, 0);
      palette = new Palette(numValues);
      initPalette(root, palette);
      redValues = new int[numValues];
      greenValues = new int[numValues];
      blueValues = new int[numValues];
      for (int i = 0; i < numValues; i++)

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  }


  private void mapImage()
  {
    RGB24Image in = (RGB24Image)getInputImage();
    Palette palette = createPalette();
    Paletted8Image out = new MemoryPaletted8Image(in.getWidth(), in.getHeight(), palette);
    int[] origRgb = new int[3];
    int[] quantizedRgb = new int[3];
    for (int y = 0; y < in.getHeight(); y++)
    {

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    }
  }


  public PixelImage createCompatibleImage(int width, int height)
  {
    Palette newPalette = null;
    Palette myPalette = getPalette();
    if (myPalette != null)
    {
      newPalette = (Palette)myPalette.clone();
    }
    return new MemoryPaletted8Image(width, height, newPalette);
  }

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  }


  public long getAllocatedMemory()
  {
    long result = super.getAllocatedMemory();
    Palette myPalette = getPalette();
    if (myPalette != null)
    {
      result += myPalette.getAllocatedMemory();
    }
    return result;
  }

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            throw new InvalidFileStructureException("Cannot " +
              "load image. The size of the colormap is " +
              "invalid: " + size);
          }
          int numColors = size / 3;
          palette = new Palette(numColors, 255);
          for (int i = 0; i < numColors; i++)
          {
            palette.putSample(Palette.INDEX_RED, i, in.readByte() & 0xff);
            palette.putSample(Palette.INDEX_GREEN, i, in.readByte() & 0xff);
            palette.putSample(Palette.INDEX_BLUE, i, in.readByte() & 0xff);

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    if (palette == null)
    {
      return;
    }
    int numPaletteEntries = palette.getNumEntries();
    Palette tempPalette = new Palette(numPaletteEntries * 2, 255);
    for (int i = 0; i < numPaletteEntries; i++)
    {
      int red = palette.getSample(Palette.INDEX_RED, i);
      tempPalette.putSample(Palette.INDEX_RED, numPaletteEntries + i, red);
      tempPalette.putSample(Palette.INDEX_RED, i, (red / 2) & 0xf0);
      int green = palette.getSample(Palette.INDEX_GREEN, i);
      tempPalette.putSample(Palette.INDEX_GREEN, numPaletteEntries + i, red);
      tempPalette.putSample(Palette.INDEX_GREEN, i, (green / 2) & 0xf0);
      int blue = palette.getSample(Palette.INDEX_BLUE, i);
      tempPalette.putSample(Palette.INDEX_BLUE, numPaletteEntries + i, blue);
      tempPalette.putSample(Palette.INDEX_BLUE, i, (blue / 2) & 0xf0);
    }
    palette = tempPalette;
  }

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    }
    if (numEntries > 256)
    {
      throw new InvalidFileStructureException("Number of palette entries larger than 256: " + numEntries);
    }
    palette = new Palette((int)numEntries);
    int index = 0;
    do
    {
      palette.putSample(Palette.INDEX_RED, index, in.read() & 0xff);
      palette.putSample(Palette.INDEX_GREEN, index, in.read() & 0xff);

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    if (colorType != COLOR_TYPE_INDEXED)
    {
      return;
    }
    Paletted8Image image = (Paletted8Image)getImage();
    Palette pal = image.getPalette();
    int numEntries = pal.getNumEntries();
    byte[] data = new byte[numEntries * 3];
    for (int i = 0, j = 0; i < numEntries; i++, j += 3)
    {
      data[j] = (byte)pal.getSample(RGBIndex.INDEX_RED, i);
      data[j + 1] = (byte)pal.getSample(RGBIndex.INDEX_GREEN, i);
      data[j + 2] = (byte)pal.getSample(RGBIndex.INDEX_BLUE, i);
    }
    saveChunk(CHUNK_TYPE_PLTE, data.length, data);
  }

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Related Classes of net.sourceforge.jiu.data.Palette

net.sourceforge.jiu.codecs.BMPCodec

net.sourceforge.jiu.codecs.GIFCodec

net.sourceforge.jiu.codecs.IFFCodec

net.sourceforge.jiu.codecs.PalmCodec

net.sourceforge.jiu.codecs.PNGCodec

net.sourceforge.jiu.codecs.PSDCodec

net.sourceforge.jiu.codecs.RASCodec

net.sourceforge.jiu.codecs.tiff.TIFFImageFileDirectory

net.sourceforge.jiu.color.adjustment.Brightness

net.sourceforge.jiu.color.adjustment.Contrast

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