void makeCustomLut() {
IndexColorModel cm = (IndexColorModel) LookUpTable.createGrayscaleColorModel(false);
byte[] reds = new byte[256];
byte[] greens = new byte[256];
byte[] blues = new byte[256];
cm.getReds(reds);
cm.getGreens(greens);
cm.getBlues(blues);
reds[1] = (byte) 255;
greens[1] = (byte) 0;
blues[1] = (byte) 0;
customLut = new IndexColorModel(8, 256, reds, greens, blues);
}
/** Returns an IndexColorModel for the image specified by this FileInfo. */
public ColorModel createColorModel(FileInfo fi) {
if (fi.fileType == FileInfo.COLOR8 && fi.lutSize > 0)
return new IndexColorModel(8, fi.lutSize, fi.reds, fi.greens, fi.blues);
else return LookUpTable.createGrayscaleColorModel(fi.whiteIsZero);
}