/// <summary>
/// ColorConverts the source BufferedImage.
/// If the destination image is null,
/// a BufferedImage will be created with an appropriate ColorModel. </summary>
/// <param name="src"> the source <code>BufferedImage</code> to be converted </param>
/// <param name="dest"> the destination <code>BufferedImage</code>,
/// or <code>null</code> </param>
/// <returns> <code>dest</code> color converted from <code>src</code>
/// or a new, converted <code>BufferedImage</code>
/// if <code>dest</code> is <code>null</code> </returns>
/// <exception cref="IllegalArgumentException"> if dest is null and this op was
/// constructed using the constructor which takes only a
/// RenderingHints argument, since the operation is ill defined. </exception>
public BufferedImage Filter(BufferedImage src, BufferedImage dest)
{
ColorSpace srcColorSpace, destColorSpace;
BufferedImage savdest = null;
if (src.ColorModel is IndexColorModel)
{
IndexColorModel icm = (IndexColorModel)src.ColorModel;
src = icm.ConvertToIntDiscrete(src.Raster, true);
}
srcColorSpace = src.ColorModel.ColorSpace;
if (dest != null)
{
if (dest.ColorModel is IndexColorModel)
{
savdest = dest;
dest = null;
destColorSpace = null;
}
else
{
destColorSpace = dest.ColorModel.ColorSpace;
}
}
else
{
destColorSpace = null;
}
if ((CSList != null) || (!(srcColorSpace is ICC_ColorSpace)) || ((dest != null) && (!(destColorSpace is ICC_ColorSpace))))
{
/* non-ICC case */
dest = NonICCBIFilter(src, srcColorSpace, dest, destColorSpace);
}
else
{
dest = ICCBIFilter(src, srcColorSpace, dest, destColorSpace);
}
if (savdest != null)
{
Graphics2D big = savdest.CreateGraphics();
try
{
big.DrawImage(dest, 0, 0, null);
}
finally
{
big.Dispose();
}
return(savdest);
}
else
{
return(dest);
}
}
/// <summary>
/// Performs a convolution on BufferedImages. Each component of the
/// source image will be convolved (including the alpha component, if
/// present).
/// If the color model in the source image is not the same as that
/// in the destination image, the pixels will be converted
/// in the destination. If the destination image is null,
/// a BufferedImage will be created with the source ColorModel.
/// The IllegalArgumentException may be thrown if the source is the
/// same as the destination. </summary>
/// <param name="src"> the source <code>BufferedImage</code> to filter </param>
/// <param name="dst"> the destination <code>BufferedImage</code> for the
/// filtered <code>src</code> </param>
/// <returns> the filtered <code>BufferedImage</code> </returns>
/// <exception cref="NullPointerException"> if <code>src</code> is <code>null</code> </exception>
/// <exception cref="IllegalArgumentException"> if <code>src</code> equals
/// <code>dst</code> </exception>
/// <exception cref="ImagingOpException"> if <code>src</code> cannot be filtered </exception>
public BufferedImage Filter(BufferedImage src, BufferedImage dst)
{
if (src == null)
{
throw new NullPointerException("src image is null");
}
if (src == dst)
{
throw new IllegalArgumentException("src image cannot be the " + "same as the dst image");
}
bool needToConvert = false;
ColorModel srcCM = src.ColorModel;
ColorModel dstCM;
BufferedImage origDst = dst;
// Can't convolve an IndexColorModel. Need to expand it
if (srcCM is IndexColorModel)
{
IndexColorModel icm = (IndexColorModel)srcCM;
src = icm.ConvertToIntDiscrete(src.Raster, false);
srcCM = src.ColorModel;
}
if (dst == null)
{
dst = CreateCompatibleDestImage(src, null);
dstCM = srcCM;
origDst = dst;
}
else
{
dstCM = dst.ColorModel;
if (srcCM.ColorSpace.Type != dstCM.ColorSpace.Type)
{
needToConvert = true;
dst = CreateCompatibleDestImage(src, null);
dstCM = dst.ColorModel;
}
else if (dstCM is IndexColorModel)
{
dst = CreateCompatibleDestImage(src, null);
dstCM = dst.ColorModel;
}
}
if (ImagingLib.filter(this, src, dst) == null)
{
throw new ImagingOpException("Unable to convolve src image");
}
if (needToConvert)
{
ColorConvertOp ccop = new ColorConvertOp(Hints);
ccop.Filter(dst, origDst);
}
else if (origDst != dst)
{
java.awt.Graphics2D g = origDst.CreateGraphics();
try
{
g.DrawImage(dst, 0, 0, null);
}
finally
{
g.Dispose();
}
}
return(origDst);
}
/// <summary>
/// Constructs a <code>BufferedImage</code> of one of the predefined
/// image types:
/// TYPE_BYTE_BINARY or TYPE_BYTE_INDEXED.
/// </summary>
public BufferedImage(int @width, int @height, int @imageType, IndexColorModel @cm)
{
}
