/**
* Gets an IndexColorModel by loading a hardcoded LUT file. This is just a temporary expedient,
* really belongs elsewhere.
*
* @return null or color model
*/
public static IndexColorModel getIndexColorModel() {
IndexColorModel colorModel = null;
// 'getDirectory("luts")' works in IJ but not in NetBeans development
String lutPath = IJ.getDirectory("luts");
if (null == lutPath) {
// when you run from a shortcut in Linux 'getDirectory("startup")'
// gives you the directory of the link!
final String startupPath = IJ.getDirectory("startup");
lutPath = addSeparator(startupPath) + "luts";
}
lutPath = addSeparator(lutPath) + LUT;
try {
colorModel = LutLoader.open(lutPath);
} catch (final IOException e) {
IJ.showMessage("Missing LUT", "Install lifetime.lut from LOCI FIJI update site.");
IJ.log("Problem loading LUT " + lutPath);
return null;
}
// IJ converts the FloatProcessor to 8-bits and then uses this palette
// for display. Unfortunately values less than or greater than the LUT
// range still get displayed with LUT colors. To work around this, use
// only 254 of the LUT colors. The first and last colors will represent
// values less than and greater than the LUT range respectively.
colorModel = PaletteFix.fixIndexColorModel(colorModel, Color.BLACK, Color.BLACK);
return colorModel;
}
/**
* Opens a lookup table (LUT) and returns it as a LUT object, or returns null if there is an
* error.
*
* @see ij.ImagePlus#setLut
*/
public static LUT openLut(String path) {
return LutLoader.openLut(path);
}