/* JAI-Ext - OpenSource Java Advanced Image Extensions Library
* http://www.geo-solutions.it/
* Copyright 2014 GeoSolutions
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package it.geosolutions.jaiext.algebra.constant;
import static org.junit.Assert.assertEquals;
import java.awt.Rectangle;
import java.awt.image.DataBuffer;
import java.awt.image.Raster;
import java.awt.image.RenderedImage;
import javax.media.jai.ROI;
import javax.media.jai.ROIShape;
import javax.media.jai.RenderedOp;
import org.junit.BeforeClass;
import org.junit.Test;
import com.sun.media.jai.util.ImageUtil;
import it.geosolutions.jaiext.algebra.AlgebraDescriptor.Operator;
import it.geosolutions.jaiext.algebra.constant.OperationConstDescriptor;
import it.geosolutions.jaiext.range.Range;
import it.geosolutions.jaiext.range.RangeFactory;
import it.geosolutions.jaiext.testclasses.TestBase;
public class OperationConstTest extends TestBase {
private static final int NUM_TYPES = 6;
private static final int DEFAULT_WIDTH_REDUCED = DEFAULT_WIDTH / 2;
private static final int DEFAULT_HEIGHT_REDUCED = DEFAULT_HEIGHT / 2;
private static final double TOLERANCE = 0.1d;
private static RenderedImage[] testImages;
private static Range noDataByte;
private static Range noDataUShort;
private static Range noDataShort;
private static Range noDataInt;
private static Range noDataFloat;
private static Range noDataDouble;
private static int destNoData;
private static ROI roiObject;
private static double[] doubleConsts;
@BeforeClass
public static void initialSetup() {
byte noDataB = 50;
short noDataS = 50;
int noDataI = 50;
float noDataF = 50;
double noDataD = 50;
testImages = new RenderedImage[NUM_TYPES];
IMAGE_FILLER = true;
testImages[DataBuffer.TYPE_BYTE] = createTestImage(DataBuffer.TYPE_BYTE,
DEFAULT_WIDTH_REDUCED, DEFAULT_HEIGHT_REDUCED, noDataB, false, 3);
testImages[DataBuffer.TYPE_USHORT] = createTestImage(DataBuffer.TYPE_USHORT,
DEFAULT_WIDTH_REDUCED, DEFAULT_HEIGHT_REDUCED, noDataS, false, 3);
testImages[DataBuffer.TYPE_SHORT] = createTestImage(DataBuffer.TYPE_SHORT,
DEFAULT_WIDTH_REDUCED, DEFAULT_HEIGHT_REDUCED, noDataS, false, 3);
testImages[DataBuffer.TYPE_INT] = createTestImage(DataBuffer.TYPE_INT,
DEFAULT_WIDTH_REDUCED, DEFAULT_HEIGHT_REDUCED, noDataI, false, 3);
testImages[DataBuffer.TYPE_FLOAT] = createTestImage(DataBuffer.TYPE_FLOAT,
DEFAULT_WIDTH_REDUCED, DEFAULT_HEIGHT_REDUCED, noDataF, false, 3);
testImages[DataBuffer.TYPE_DOUBLE] = createTestImage(DataBuffer.TYPE_DOUBLE,
DEFAULT_WIDTH_REDUCED, DEFAULT_HEIGHT_REDUCED, noDataD, false, 3);
IMAGE_FILLER = false;
// No Data Ranges
boolean minIncluded = true;
boolean maxIncluded = true;
noDataByte = RangeFactory.create(noDataB, minIncluded, noDataB, maxIncluded);
noDataUShort = RangeFactory.createU(noDataS, minIncluded, noDataS, maxIncluded);
noDataShort = RangeFactory.create(noDataS, minIncluded, noDataS, maxIncluded);
noDataInt = RangeFactory.create(noDataI, minIncluded, noDataI, maxIncluded);
noDataFloat = RangeFactory.create(noDataF, minIncluded, noDataF, maxIncluded, true);
noDataDouble = RangeFactory.create(noDataD, minIncluded, noDataD, maxIncluded, true);
doubleConsts = new double[] { 10.5, 15.5, 20.5 };
// Destination No Data
destNoData = 100;
// ROI creation
Rectangle roiBounds = new Rectangle(5, 5, DEFAULT_WIDTH_REDUCED / 4,
DEFAULT_HEIGHT_REDUCED / 4);
roiObject = new ROIShape(roiBounds);
}
@Test
public void testNoROINoNoData() {
boolean roiUsed = false;
boolean noDataUsed = false;
for (int i = 0; i < 6; i++) {
runTests(i, noDataUsed, roiUsed);
}
}
@Test
public void testOnlyNoData() {
boolean roiUsed = false;
boolean noDataUsed = true;
for (int i = 0; i < 6; i++) {
runTests(i, noDataUsed, roiUsed);
}
}
@Test
public void testOnlyROI() {
boolean roiUsed = true;
boolean noDataUsed = false;
for (int i = 0; i < 6; i++) {
runTests(i, noDataUsed, roiUsed);
}
}
@Test
public void testROIAndNoData() {
boolean roiUsed = true;
boolean noDataUsed = true;
for (int i = 0; i < 6; i++) {
runTests(i, noDataUsed, roiUsed);
}
}
private void runTests(int dataType, boolean noDataUsed, boolean roiUsed) {
testOperation(testImages[dataType], Operator.SUM, noDataUsed, roiUsed);
testOperation(testImages[dataType], Operator.SUBTRACT, noDataUsed, roiUsed);
testOperation(testImages[dataType], Operator.MULTIPLY, noDataUsed, roiUsed);
testOperation(testImages[dataType], Operator.DIVIDE, noDataUsed, roiUsed);
testOperation(testImages[dataType], Operator.DIVIDE_INTO, noDataUsed, roiUsed);
if (dataType != DataBuffer.TYPE_FLOAT && dataType != DataBuffer.TYPE_DOUBLE) {
testOperation(testImages[dataType], Operator.AND, noDataUsed, roiUsed);
testOperation(testImages[dataType], Operator.OR, noDataUsed, roiUsed);
testOperation(testImages[dataType], Operator.XOR, noDataUsed, roiUsed);
}
}
private void testOperation(RenderedImage source, Operator op, boolean noDataUsed,
boolean roiUsed) {
// Optional No Data Range used
Range noData;
// Source image data type
int dataType = source.getSampleModel().getDataType();
// If no Data are present, the No Data Range associated is used
if (noDataUsed) {
switch (dataType) {
case DataBuffer.TYPE_BYTE:
noData = noDataByte;
break;
case DataBuffer.TYPE_USHORT:
noData = noDataUShort;
break;
case DataBuffer.TYPE_SHORT:
noData = noDataShort;
break;
case DataBuffer.TYPE_INT:
noData = noDataInt;
break;
case DataBuffer.TYPE_FLOAT:
noData = noDataFloat;
break;
case DataBuffer.TYPE_DOUBLE:
noData = noDataDouble;
break;
default:
throw new IllegalArgumentException("Wrong data type");
}
} else {
noData = null;
}
ROI roi;
if (roiUsed) {
roi = roiObject;
} else {
roi = null;
}
// operation
RenderedOp calculated = OperationConstDescriptor.create(source, doubleConsts, op, roi,
noData, destNoData, null);
// Check
testOperation(calculated, source, roi, noData, op);
// Disposal of the output image
calculated.dispose();
}
private void testOperation(RenderedOp calculated, RenderedImage source, ROI roi, Range noData,
Operator op) {
boolean roiUsed = roi != null;
boolean noDataUsed = noData != null;
// Upper-Left tile indexes
int minTileX = calculated.getMinTileX();
int minTileY = calculated.getMinTileY();
// Raster object
Raster upperLeftTile = calculated.getTile(minTileX, minTileY);
// Tile bounds
int minX = upperLeftTile.getMinX();
int minY = upperLeftTile.getMinY();
int maxX = upperLeftTile.getWidth() + minX;
int maxY = upperLeftTile.getHeight() + minY;
// Source Raster
Raster sourceRaster = source.getTile(minTileX, minTileY);
// Old band value
double valueOld = 0;
double value = 0;
double sample = 0;
boolean isValidData = false;
boolean supportsDouble = op.isDataTypeSupported(DataBuffer.TYPE_DOUBLE);
int dataType = calculated.getSampleModel().getDataType();
int numBands = calculated.getSampleModel().getNumBands();
// Cycle on all the tile Bands
for (int b = 0; b < numBands; b++) {
// Cycle on the y-axis
for (int x = minX; x < maxX; x++) {
// Cycle on the x-axis
for (int y = minY; y < maxY; y++) {
// Calculated value
value = upperLeftTile.getSampleDouble(x, y, b);
sample = sourceRaster.getSampleDouble(x, y, b);
valueOld = 0;
isValidData = (!roiUsed || roiUsed && roi.contains(x, y))
&& (!noDataUsed || (noDataUsed && !noDataDouble.contains(sample)));
if (isValidData) {
if(supportsDouble){
valueOld = op.calculate(sample, doubleConsts[b]);
} else {
valueOld = op.calculate((int)sample, ImageUtil.clampRoundInt(doubleConsts[b]));
}
switch (dataType) {
case DataBuffer.TYPE_BYTE:
//valueOld = op.calculate(sample, constB);
valueOld = ImageUtil.clampRoundByte(valueOld);
value = (byte) (((((int) value << 23) >> 31) | (int) value) & 0xFF);
break;
case DataBuffer.TYPE_USHORT:
valueOld = ImageUtil.clampRoundUShort(valueOld) & 0xFFFF;
// valueOld = ImageUtil.clampUShort(op.calculate(((int) sample & 0xFFFF),
// (int) doubleConsts[b]));
break;
case DataBuffer.TYPE_SHORT:
valueOld = ImageUtil.clampRoundShort(valueOld);
// valueOld = ImageUtil.clampShort(op.calculate((short) sample,
// (short) doubleConsts[b]));
break;
case DataBuffer.TYPE_INT:
valueOld = ImageUtil.clampRoundInt(valueOld);
// valueOld = ImageUtil.clampInt(op.calculate((long) sample,
// (long) doubleConsts[b]));
break;
case DataBuffer.TYPE_FLOAT:
valueOld = ImageUtil.clampFloat(valueOld);
// valueOld = ImageUtil.clampFloat(op.calculate((float) sample,
// (float) doubleConsts[b]));
break;
case DataBuffer.TYPE_DOUBLE:
//valueOld = op.calculate(sample, doubleConsts[b]);
break;
default:
break;
}
assertEquals(value, valueOld, TOLERANCE);
} else {
assertEquals(value, destNoData, TOLERANCE);
}
}
}
}
}
}