Revision 2438 org.gvsig.raster/trunk/org.gvsig.raster/org.gvsig.raster.lib/org.gvsig.raster.lib.impl/src/main/java/org/gvsig/raster/impl/grid/filter/enhancement/EqualizationFilter.java
| EqualizationFilter.java | ||
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import org.gvsig.fmap.dal.coverage.datastruct.BufferHistogram; |
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import org.gvsig.fmap.dal.coverage.datastruct.Params; |
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import org.gvsig.fmap.dal.coverage.exception.FileNotOpenException; |
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import org.gvsig.fmap.dal.coverage.exception.FilterAddException; |
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import org.gvsig.fmap.dal.coverage.exception.HistogramException; |
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
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import org.gvsig.fmap.dal.coverage.exception.RasterDriverException; |
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import org.gvsig.fmap.dal.coverage.grid.filter.BaseRasterFilter; |
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import org.gvsig.fmap.dal.coverage.store.props.HistogramComputer; |
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import org.gvsig.fmap.dal.coverage.store.props.Statistics; |
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import org.gvsig.raster.impl.DefaultRasterManager; |
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import org.gvsig.raster.impl.buffer.RasterBuffer; |
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import org.gvsig.raster.impl.datastruct.BufferHistogramImpl; |
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import org.gvsig.raster.impl.store.ParamsImpl; |
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/** |
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* Clase base para los filtros de ecualizaci?n de histograma. |
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* |
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* @version 31/05/2007 |
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* @author Nacho Brodin (nachobrodin@gmail.com) |
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*/ |
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public class EqualizationFilter extends BaseRasterFilter {
|
| ... | ... | |
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protected double[] minBandValue = null; |
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protected double[] maxBandValue = null; |
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protected int nbands = 3; |
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protected int[] renderBands = null; |
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protected int[] k = null; |
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public static String[] names = new String[] {"equalization"};
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protected BufferHistogram histogram = null; |
| ... | ... | |
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setName(names[0]); |
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} |
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#pre() |
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*/ |
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public void pre() {
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raster = (Buffer) params.get("raster");
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stats = (Statistics) params.get("stats");
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histogram = (BufferHistogram) params.get("histogram");
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if(histogram == null) {
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try {
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histogram = raster.getHistogramComputer().getBufferHistogram(); |
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} catch (ProcessInterruptedException e) {
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exec = false; |
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} catch (HistogramException e) {
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exec = false; |
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} |
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public void pre() throws FilterAddException {
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super.pre(); |
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stats = (Statistics)getEnv().get("SrcStatistics");
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HistogramComputer hist = (HistogramComputer)getEnv().get("SrcHistogram");
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try {
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if (!stats.isCalculated()) {
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try {
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stats.calculate(RasterLibrary.statisticsScale); |
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} catch (FileNotOpenException e) {
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// No podemos aplicar el filtro |
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return; |
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} catch (RasterDriverException e) {
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// No podemos aplicar el filtro |
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return; |
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} |
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} |
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} catch (ProcessInterruptedException e) {
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//Si se ha interrumpido no a?adimos el filtro |
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} |
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|
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try {
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this.histogram = hist.getBufferHistogram(); |
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} catch (ProcessInterruptedException e) {
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exec = false; |
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} catch (HistogramException e) {
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exec = false; |
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} |
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renderBands = (int[]) params.get("renderBands");
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if(renderBands != null && renderBands.length < raster.getBandCount()) {
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int[] newRenderBands = new int[raster.getBandCount()]; |
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for (int i = 0; i < renderBands.length; i++) |
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newRenderBands[i] = renderBands[i]; |
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for (int i = renderBands.length; i < newRenderBands.length; i++) |
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newRenderBands[i] = i; |
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renderBands = newRenderBands; |
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} |
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if(renderBands == null) |
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renderBands = new int[]{0, 1, 2};
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ecualizedBands = (int[]) params.get("ecualizedBands");
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if(ecualizedBands == null) |
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ecualizedBands = renderBands;
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ecualizedBands = getColorInterpretation().buildRenderBands();
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height = raster.getHeight(); |
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width = raster.getWidth(); |
| ... | ... | |
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maxBandValue = stats.getMax(); |
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} |
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} |
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BufferHistogram rgbHistogram = null; |
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try {
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if(raster.getDataType() == Buffer.TYPE_BYTE) |
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rgbHistogram = BufferHistogramImpl.convertHistogramToRGB(raster.getHistogramComputer().getBufferHistogram()); |
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else |
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rgbHistogram = raster.getHistogramComputer().getBufferHistogram(); |
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} catch (ProcessInterruptedException e) {
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exec = false; |
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return; |
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} catch (HistogramException e) {
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exec = false; |
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return; |
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} |
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if(raster.getDataType() == Buffer.TYPE_BYTE) |
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rgbHistogram = BufferHistogramImpl.convertHistogramToRGB(histogram); |
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else |
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rgbHistogram = histogram; |
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double[][] accumNormalize = BufferHistogramImpl.convertTableToNormalizeAccumulate(rgbHistogram.getTable()); |
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double[][] accumNormalizeNeg = BufferHistogramImpl.convertTableToNormalizeAccumulate(rgbHistogram.getNegativeTable()); |
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|
| ... | ... | |
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nElements = (laheNegative[0].length - 1); |
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nbands = stats.getBandCount(); |
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rasterResult = DefaultRasterManager.getInstance().createBuffer(raster.getDataType(), raster.getWidth(), raster.getHeight(), raster.getBandCount(), true);
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createBufferResult(raster.getDataType(), raster.getBandCount());
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} |
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/** |
| ... | ... | |
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return false; |
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} |
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|
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#getOutRasterDataType() |
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*/ |
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public int getOutRasterDataType() {
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return Buffer.TYPE_BYTE; |
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} |
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#getResult(java.lang.String) |
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*/ |
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public Object getResult(String name) {
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if (name.equals("raster")) {
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if (!exec) |
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return this.raster; |
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return this.rasterResult; |
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} |
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return null; |
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} |
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|
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#getGroup() |
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*/ |
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public String getGroup() {
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return "realces"; |
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} |
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|
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#getUIParams() |
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*/ |
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public Params getUIParams(String nameFilter) {
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Params params = new ParamsImpl(); |
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return params; |
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return new ParamsImpl(); |
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} |
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|
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#post() |
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*/ |
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public void post() {
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// En caso de que nadie apunte a raster, se liberar? su memoria. |
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raster = null; |
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} |
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|
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#getInRasterDataType() |
|
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*/ |
|
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public int getInRasterDataType() {
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return 0; |
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} |
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|
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#process(int, int) |
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*/ |
|
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public void process(int x, int y) {
|
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} |
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|
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/* |
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* (non-Javadoc) |
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* @see org.gvsig.raster.grid.filter.RasterFilter#getNames() |
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*/ |
|
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public String[] getNames() {
|
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return names; |
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} |
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|
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/* |
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* (non-Javadoc) |
|
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* @see org.gvsig.raster.grid.filter.RasterFilter#isVisible() |
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*/ |
|
| 266 | 208 |
public boolean isVisible() {
|
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return true; |
| 268 | 210 |
} |
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