gvsig-raster / org.gvsig.raster.cache / trunk / org.gvsig.raster.cache / org.gvsig.raster.cache.lib.impl / deprecated / buffer / test / impl / TestStatistics.java @ 1965
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package org.gvsig.raster.cache.buffer.impl; |
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import java.io.IOException; |
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import junit.framework.TestCase; |
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import org.gvsig.jgdal.GdalException; |
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import org.gvsig.raster.cache.buffer.Band; |
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import org.gvsig.raster.cache.buffer.Buffer; |
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import org.gvsig.raster.cache.buffer.BufferDataSource; |
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import org.gvsig.raster.cache.buffer.exception.OperationNotSupportedException; |
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import org.gvsig.raster.cache.buffer.exception.ProcessInterruptedException; |
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import org.gvsig.raster.cache.buffer.impl.io.BufferDataSourceImpl; |
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import org.gvsig.raster.cache.buffer.impl.io.GdalRead; |
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import org.gvsig.raster.cache.buffer.impl.memory.RasterMemoryBuffer; |
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import org.gvsig.raster.cache.buffer.impl.rocache.RasterReadOnlyBuffer; |
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import org.gvsig.raster.cache.buffer.impl.stripecache.horizontal.RasterCacheBuffer; |
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/**
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* This test calculate the statistics of a image and compare the result with
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* the correct values.
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class TestStatistics extends TestCase { |
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private String rasterIn = "./src/test/resources/image/001m09_1_0.tif"; |
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public void start() { |
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this.setUp();
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this.testStack();
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} |
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public void setUp() { |
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System.err.println("TestStatistics running..."); |
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} |
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public void testStack() { |
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long t1 = System.currentTimeMillis(); |
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GdalRead input = null;
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try {
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//Read input data
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input = new GdalRead(rasterIn);
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Object dataIn = input.readBlock(0, 0, input.getWidth(), input.getHeight()); |
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//MEMORY
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Buffer buf = new RasterMemoryBuffer(input.getRasterBufTypeFromGdalType(input.getDataType()), |
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input.getWidth(), |
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input.getHeight(), |
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input.getBandCount(), |
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true);
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//Set data to buffer
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setLines(dataIn, buf); |
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buf.getStatistics().calculate(); |
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test(buf); |
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buf.free(); |
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//CACHE
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buf = new RasterCacheBuffer(input.getRasterBufTypeFromGdalType(input.getDataType()),
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input.getWidth(), |
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input.getHeight(), |
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input.getBandCount()); |
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//Set data to buffer
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setLines(dataIn, buf); |
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buf.getStatistics().calculate(); |
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test(buf); |
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buf.free(); |
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//READ ONLY
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BufferDataSource ds = null;
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try {
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ds = new BufferDataSourceImpl(rasterIn);
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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buf = new RasterReadOnlyBuffer(ds);
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buf.getStatistics().calculate(); |
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test(buf); |
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buf.free(); |
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} catch (GdalException e) {
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e.printStackTrace(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} catch (ProcessInterruptedException e) {
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e.printStackTrace(); |
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} catch (OperationNotSupportedException e) { |
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e.printStackTrace(); |
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} |
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long t2 = System.currentTimeMillis(); |
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System.out.println("Tiempo TestStatistics: " + (t2 - t1) + " milisegundos"); |
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} |
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private void test(Buffer buf) { |
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for (int i = 0; i < buf.getBandCount(); i++) { |
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Band b = buf.getBand(i); |
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/*System.out.println("Band " + i);
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System.out.println("Max: " + b.getMax());
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System.out.println("Min: " + b.getMin());
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System.out.println("Max RGB: " + b.getMaxRGB());
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System.out.println("Min RGB: " + b.getMinRGB());
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System.out.println("SecondMax: " + b.getSecondMax());
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System.out.println("SecondMin: " + b.getSecondMin());
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System.out.println("SecondMax RGB: " + b.getSecondMaxRGB());
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System.out.println("SecondMin RGB: " + b.getSecondMinRGB());
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System.out.println("Mean: " + b.getMean());*/
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if(i == 0) { |
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assertEquals((int)b.getMax(), 124); |
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assertEquals((int)b.getMin(), -125); |
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assertEquals((int)b.getMaxRGB(), 255); |
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assertEquals((int)b.getMinRGB(), 0); |
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assertEquals((int)b.getSecondMax(), 118); |
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assertEquals((int)b.getSecondMin(), -119); |
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assertEquals((int)b.getSecondMaxRGB(), 249); |
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assertEquals((int)b.getSecondMinRGB(), 6); |
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assertEquals((int)b.getMean(), 79); |
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} |
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if(i == 1) { |
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assertEquals((int)b.getMax(), 120); |
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assertEquals((int)b.getMin(), -128); |
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assertEquals((int)b.getMaxRGB(), 255); |
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assertEquals((int)b.getMinRGB(), 0); |
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assertEquals((int)b.getSecondMax(), 113); |
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assertEquals((int)b.getSecondMin(), -121); |
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assertEquals((int)b.getSecondMaxRGB(), 248); |
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assertEquals((int)b.getSecondMinRGB(), 8); |
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assertEquals((int)b.getMean(), 88); |
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} |
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if(i == 2) { |
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assertEquals((int)b.getMax(), 115); |
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assertEquals((int)b.getMin(), -128); |
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assertEquals((int)b.getMaxRGB(), 255); |
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assertEquals((int)b.getMinRGB(), 0); |
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assertEquals((int)b.getSecondMax(), 102); |
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assertEquals((int)b.getSecondMin(), -116); |
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assertEquals((int)b.getSecondMaxRGB(), 242); |
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assertEquals((int)b.getSecondMinRGB(), 13); |
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assertEquals((int)b.getMean(), 91); |
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} |
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} |
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} |
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private void setLines(Object dataIn, Buffer buf) throws OperationNotSupportedException { |
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if(dataIn instanceof byte[][][]) { |
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byte[][][] d = (byte[][][])dataIn; |
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for (int iBand = 0; iBand < d.length; iBand++) { |
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for (int row = 0; row < d[iBand].length; row++) { |
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buf.setLineInBandByte(d[iBand][row], row, iBand); |
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} |
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} |
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} |
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} |
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} |