private static FilterBand createFilterBand(Filter filter, String bandName, int iterationCount) {
RasterDataNode sourceRaster = (RasterDataNode) VisatApp.getApp().getSelectedProductNode();
FilterBand targetBand;
Product product = sourceRaster.getProduct();
if (filter.getOperation() == Filter.Operation.CONVOLVE) {
targetBand =
new ConvolutionFilterBand(bandName, sourceRaster, getKernel(filter), iterationCount);
if (sourceRaster instanceof Band) {
ProductUtils.copySpectralBandProperties((Band) sourceRaster, targetBand);
}
} else {
GeneralFilterBand.OpType opType = getOpType(filter.getOperation());
targetBand =
new GeneralFilterBand(bandName, sourceRaster, opType, getKernel(filter), iterationCount);
if (sourceRaster instanceof Band) {
ProductUtils.copySpectralBandProperties((Band) sourceRaster, targetBand);
}
}
targetBand.setDescription(
String.format(
"Filter '%s' (=%s) applied to '%s'",
filter.getName(), filter.getOperation(), sourceRaster.getName()));
if (sourceRaster instanceof Band) {
ProductUtils.copySpectralBandProperties((Band) sourceRaster, targetBand);
}
product.addBand(targetBand);
targetBand.fireProductNodeDataChanged();
return targetBand;
}
/**
* Adds requested bands to the output product.
*
* @param description a description template for the new bands to be created
* @param bConvertMerisName it set to true, the MERIS l1b band name is converted from
* <i>radiance_n</i> to <i>reflectance_n</i>
*/
private void addBandsToOutput(String description, boolean bConvertMerisName) {
for (Band inBand : _inputBandList) {
String newBandName;
String bandUnit;
if (bConvertMerisName) {
newBandName = convertMerisBandName(inBand);
bandUnit = "dl";
} else {
newBandName = inBand.getName();
bandUnit = inBand.getUnit();
}
Band outBand =
new Band(
newBandName,
inBand.getGeophysicalDataType(),
inBand.getSceneRasterWidth(),
inBand.getSceneRasterHeight());
outBand.setUnit(bandUnit);
ProductUtils.copySpectralBandProperties(inBand, outBand);
outBand.setDescription(description + inBand.getName());
_outputProduct.addBand(outBand);
}
}
@Override
public void initialize() throws OperatorException {
if (computeErrorBands) {
deactivateComputeTileMethod();
}
if (endmemberFile != null) {
loadEndmemberFile();
}
if (sourceBandNames == null || sourceBandNames.length == 0) {
Band[] bands = sourceProduct.getBands();
ArrayList<String> bandNameList = new ArrayList<String>();
for (Band band : bands) {
if (band.getSpectralWavelength() > 0) {
bandNameList.add(band.getName());
}
}
sourceBandNames = bandNameList.toArray(new String[bandNameList.size()]);
}
validateParameters();
sourceBands = new Band[sourceBandNames.length];
for (int i = 0; i < sourceBandNames.length; i++) {
String sourceBandName = sourceBandNames[i];
Band sourceBand = sourceProduct.getBand(sourceBandName);
if (sourceBand == null) {
throw new OperatorException("Source band not found: " + sourceBandName);
}
if (sourceBand.getSpectralWavelength() <= 0) {
throw new OperatorException("Source band without spectral wavelength: " + sourceBandName);
}
sourceBands[i] = sourceBand;
}
int numSourceBands = sourceBands.length;
int numEndmembers = endmembers.length;
if (numSourceBands < numEndmembers) {
throw new OperatorException("Number of source bands must be >= number of endmembers.");
}
double[][] lsuMatrixElements = new double[numSourceBands][numEndmembers];
for (int j = 0; j < numEndmembers; j++) {
Endmember endmember = endmembers[j];
double[] wavelengths = endmember.getWavelengths();
double[] radiations = endmember.getRadiations();
for (int i = 0; i < numSourceBands; i++) {
Band sourceBand = sourceBands[i];
float wavelength = sourceBand.getSpectralWavelength();
float bandwidth = sourceBand.getSpectralBandwidth();
int k =
findEndmemberSpectralIndex(wavelengths, wavelength, Math.max(bandwidth, minBandwidth));
if (k == -1) {
throw new OperatorException(
String.format(
"Band %s: No matching endmember wavelength found (%f nm)",
sourceBand.getName(), wavelength));
}
lsuMatrixElements[i][j] = radiations[k];
}
}
if (UC_LSU.equals(unmixingModelName)) {
spectralUnmixing = new UnconstrainedLSU(lsuMatrixElements);
} else if (C_LSU.equals(unmixingModelName)) {
spectralUnmixing = new ConstrainedLSU(lsuMatrixElements);
} else if (FC_LSU.equals(unmixingModelName)) {
spectralUnmixing = new FullyConstrainedLSU(lsuMatrixElements);
} else if (unmixingModelName == null) {
spectralUnmixing = new UnconstrainedLSU(lsuMatrixElements);
}
int width = sourceProduct.getSceneRasterWidth();
int height = sourceProduct.getSceneRasterHeight();
targetProduct =
new Product(sourceProduct.getName() + "_unmixed", "SpectralUnmixing", width, height);
abundanceBands = new Band[numEndmembers];
for (int i = 0; i < numEndmembers; i++) {
abundanceBands[i] =
targetProduct.addBand(
endmembers[i].getName() + abundanceBandNameSuffix, ProductData.TYPE_FLOAT32);
}
if (computeErrorBands) {
errorBands = new Band[numSourceBands];
for (int i = 0; i < errorBands.length; i++) {
final String erroBandName = sourceBands[i].getName() + errorBandNameSuffix;
errorBands[i] = targetProduct.addBand(erroBandName, ProductData.TYPE_FLOAT32);
ProductUtils.copySpectralBandProperties(sourceBands[i], errorBands[i]);
}
summaryErrorBand = targetProduct.addBand("summary_error", ProductData.TYPE_FLOAT32);
summaryErrorBand.setDescription("Root mean square error");
}
ProductUtils.copyMetadata(sourceProduct, targetProduct);
ProductUtils.copyTiePointGrids(sourceProduct, targetProduct);
ProductUtils.copyGeoCoding(sourceProduct, targetProduct);
}