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BoofCV is an open source Java library for real-time computer vision and robotics applications.
The newest version!
/*
* Copyright (c) 2021, Peter Abeles. All Rights Reserved.
*
* This file is part of BoofCV (http://boofcv.org).
*
* 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 boofcv;
import boofcv.core.image.*;
import boofcv.struct.image.*;
import georegression.geometry.ConvertRotation3D_F64;
import georegression.struct.se.Se3_F64;
import georegression.struct.so.Rodrigues_F64;
import org.ejml.UtilEjml;
import org.ejml.data.DMatrixRMaj;
import org.ejml.dense.row.CommonOps_DDRM;
import org.jetbrains.annotations.Nullable;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
// lint:forbidden disable_check for_each
/**
* Functions to aid in unit testing code for correctly handling sub-images
*
* @author Peter Abeles
*/
// todo remove all comwapare with border functions and use sub-images instead
@SuppressWarnings("ALL")
public class BoofTesting {
public static final long BASE_SEED = 0xBEEF;
/**
* Creates Random but using a fixed seed with an offset. The idea if we want to test to see if a test is brittle
* we can do that across the project by changing the base seed.
*
* @param offset Value added to base seed.
* @return Random
*/
public static Random createRandom( long offset ) {
return new Random(0xBEEF + offset);
}
/**
* Recommended tolerance by image data type. Useful when processing images but the type isn't known at compile
* time.
*/
public static double tolerance( ImageDataType type ) {
double tol = UtilEjml.TEST_F64;
if (!type.isInteger() && type.getNumBits() == 32) {
tol = UtilEjml.TEST_F32;
}
return tol;
}
public static @Nullable T convertToGenericType( @Nullable Class type ) {
if (type == GrayS8.class || type == GrayU8.class)
return (T)GrayI8.class;
if (type == GrayS16.class || type == GrayU16.class)
return (T)GrayI16.class;
if (type == InterleavedS8.class || type == InterleavedU8.class)
return (T)InterleavedI8.class;
if (type == InterleavedS16.class || type == InterleavedU16.class)
return (T)InterleavedI16.class;
return (T)type;
}
public static ImageDataType convertToGenericType( ImageDataType type ) {
if (type.isInteger()) {
if (type.getNumBits() == 8)
return ImageDataType.I8;
else if (type.getNumBits() == 16)
return ImageDataType.I16;
}
return type;
}
/**
* Checks to see if the two transforms are equal up to a scale factor. Rotation is tested using a single angle
* and translation using magnitude. NOTE: The direction of the translation is NOT considered part of the
* sign ambiguity in this came.
*
* @param expected the expected transform
* @param found the found transform
* @param tolAngle radians
* @param tolT fractional error tolernace
*/
public static void assertEqualsToScaleS( Se3_F64 expected, Se3_F64 found, double tolAngle, double tolT ) {
var R = new DMatrixRMaj(3, 3);
CommonOps_DDRM.multTransA(expected.R, found.R, R);
Rodrigues_F64 rod = ConvertRotation3D_F64.matrixToRodrigues(R, null);
assertEquals(0.0, rod.theta, tolAngle);
double normFound = found.T.norm();
double normExpected = expected.T.norm();
if (normExpected == 0.0 || normFound == 0.0) {
assertEquals(0.0, normFound, tolT);
return;
}
// Normalize so that both have a norm of 1
double dx = expected.T.x/normExpected - found.T.x/normFound;
double dy = expected.T.y/normExpected - found.T.y/normFound;
double dz = expected.T.z/normExpected - found.T.z/normFound;
double r = Math.sqrt(dx*dx + dy*dy + dz*dz);
assertEquals(0.0, r, tolT, "E=" + expected.T + " F=" + found.T);
}
/**
* Checks to see if the two transforms are equal up to a scale factor. Rotation is tested using a single angle
* and translation using magnitude. NOTE: Scale ambiguity also includes sign ambiguity for translation.
*
* @param expected the expected transform
* @param found the found transform
* @param tolAngle radians
* @param tolT fractional error tolernace
*/
public static void assertEqualsToScale( Se3_F64 expected, Se3_F64 found, double tolAngle, double tolT ) {
var R = new DMatrixRMaj(3, 3);
CommonOps_DDRM.multTransA(expected.R, found.R, R);
Rodrigues_F64 rod = ConvertRotation3D_F64.matrixToRodrigues(R, null);
assertEquals(0.0, rod.theta, tolAngle);
double normFound = found.T.norm();
double normExpected = expected.T.norm();
if (normFound == 0.0 || normExpected == 0.0) {
assertEquals(0.0, normFound, tolT);
return;
}
int largestIdx = -1;
double largestMag = 0;
for (int i = 0; i < 3; i++) {
double mag = Math.abs(expected.T.getIdx(i));
if (mag > largestMag) {
largestMag = mag;
largestIdx = i;
}
}
if (Math.signum(expected.T.getIdx(largestIdx)) != Math.signum(found.T.getIdx(largestIdx)))
normFound *= -1;
// they will have the same scale and a norm of 1
double dx = expected.T.x/normExpected - found.T.x/normFound;
double dy = expected.T.y/normExpected - found.T.y/normFound;
double dz = expected.T.z/normExpected - found.T.z/normFound;
double r = Math.sqrt(dx*dx + dy*dy + dz*dz);
assertEquals(0.0, r, tolT, "E=" + expected.T + " F=" + found.T);
}
public static void assertEquals( Se3_F64 expected, Se3_F64 found, double tolAngle, double tolT ) {
var R = new DMatrixRMaj(3, 3);
CommonOps_DDRM.multTransA(expected.R, found.R, R);
Rodrigues_F64 rod = ConvertRotation3D_F64.matrixToRodrigues(R, null);
assertEquals(0.0, rod.theta, tolAngle);
assertEquals(0.0, found.T.distance(expected.T), tolT);
}
private static void assertEquals( double expected, double found, double tol ) {
if (Math.abs(expected - found) > tol)
throw new RuntimeException("Error too large. expected=" + expected + " found=" + found + " tol=" + tol);
}
private static void assertEquals( double expected, double found, double tol, String message ) {
if (Math.abs(expected - found) > tol)
throw new RuntimeException("Error too large. expected=" + expected + " found=" + found + " tol=" + tol + "\n" + message);
}
/**
*
* Returns an image which is a sub-image but contains the same values of the input image. Use for
* testing compliance with sub-images. The subimage is created by creating a larger image,
* copying over the input image into the inner portion, then creating a subimage of the copied part.
*
*/
@SuppressWarnings({"unchecked"})
public static > T createSubImageOf( T input ) {
if (input instanceof ImageGray) {
return (T)createSubImageOf_S((ImageGray)input);
} else if (input instanceof Planar) {
return (T)createSubImageOf_PL((Planar)input);
} else if (input instanceof ImageInterleaved) {
return (T)createSubImageOf_I((ImageInterleaved)input);
} else {
throw new IllegalArgumentException("Add support for this image type");
}
}
public static > T createSubImageOf_S( T input ) {
// create the larger image
T ret = (T)input.createNew(input.width + 10, input.height + 12);
// create a sub-image of the inner portion
ret = (T)ret.subimage(5, 7, input.width + 5, input.height + 7, null);
// copy input image into the subimage
ret.setTo(input);
return ret;
}
public static > T createSubImageOf_I( T input ) {
// create the larger image
T ret = (T)input.createNew(input.width + 10, input.height + 12);
// create a sub-image of the inner portion
ret = (T)ret.subimage(5, 7, input.width + 5, input.height + 7, null);
// copy input image into the subimage
ret.setTo(input);
return ret;
}
public static T createSubImageOf_PL( T input ) {
T ret = (T)new Planar(input.type, input.width, input.height, input.getNumBands());
for (int i = 0; i < input.getNumBands(); i++) {
ret.bands[i] = createSubImageOf_S(input.getBand(i));
}
ret.stride = ret.bands[0].stride;
ret.startIndex = ret.bands[0].startIndex;
return ret;
}
/**
* Searches for functions that accept only images and makes sure they only accept
* images which have he same width and height.
*
* @param testClass Instance of the class being tested
*/
public static void checkImageDimensionValidation( Object testClass, int numFunctions ) {
int count = 0;
Method methods[] = testClass.getClass().getMethods();
for (Method m : methods) {
// see if the inputs are all images
if (!areAllInputsImages(m))
continue;
// test a positive case
Class params[] = m.getParameterTypes();
Object[] inputs = new Object[params.length];
for (int i = 0; i < params.length; i++) {
inputs[i] = GeneralizedImageOps.createSingleBand(params[i], 10, 20);
}
try {
m.invoke(testClass, inputs);
} catch (IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException(e);
}
// test negative cases
for (int target = 0; target < params.length; target++) {
for (int i = 0; i < params.length; i++) {
if (i != target)
inputs[i] = GeneralizedImageOps.createSingleBand(params[i], 10, 20);
else
inputs[i] = GeneralizedImageOps.createSingleBand(params[i], 11, 22);
}
try {
m.invoke(testClass, inputs);
throw new RuntimeException("Expected an exception here");
} catch (InvocationTargetException e) {
if (e.getTargetException().getClass() != IllegalArgumentException.class)
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
count++;
}
if (count != numFunctions)
throw new RuntimeException("Unexpected number of functions");
}
/**
* Searches for functions that accept only images and makes sure they only accept
* images which have he same width and height.
*
* @param testClass Instance of the class being tested
*/
public static void checkImageDimensionReshape( Object testClass, int numFunctions ) {
int count = 0;
Method methods[] = testClass.getClass().getMethods();
for (Method m : methods) {
// see if the inputs are all images
if (!areAllInputsImages(m))
continue;
// test a positive case
Class params[] = m.getParameterTypes();
Object[] inputs = new Object[params.length];
for (int i = 0; i < params.length; i++) {
inputs[i] = GeneralizedImageOps.createSingleBand(params[i], 10, 20);
}
try {
m.invoke(testClass, inputs);
} catch (IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException(e);
}
// test negative cases
// skip input which will be fixed size
for (int target = 1; target < params.length; target++) {
for (int i = 0; i < params.length; i++) {
if (i != target)
inputs[i] = GeneralizedImageOps.createSingleBand(params[i], 10, 20);
else
inputs[i] = GeneralizedImageOps.createSingleBand(params[i], 11, 22);
}
try {
m.invoke(testClass, inputs);
} catch (IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException(e);
}
for (int i = 1; i < params.length; i++) {
if (10 != ((ImageBase)inputs[i]).width || 20 != ((ImageBase)inputs[i]).height)
throw new RuntimeException("Wasn't reshaped");
}
}
count++;
}
if (count != numFunctions)
throw new RuntimeException("Unexpected number of functions. cnt=" + count + " funcs=" + numFunctions);
}
private static boolean areAllInputsImages( Method m ) {
Class params[] = m.getParameterTypes();
if (params.length == 0)
return false;
for (Class p : params) {
if (!ImageGray.class.isAssignableFrom(p)) {
return false;
}
}
return true;
}
/**
* Tests the specified function with the original image provided and with an equivalent
* sub-image. The two results are then compared. The function being tested must only
* have one input parameter of type {@link GrayU8}.
*
* @param testClass Instance of the class that contains the function being tested.
* @param function The name of the function being tested.
* @param checkEquals Checks to see if the two images have been modified the same way on output
* @param inputParam The original input parameters
*/
// TODO make sure pixels outside are not modified of sub-matrix
// todo have the submatrices be from different shaped inputs
public static void checkSubImage( Object testClass,
String function,
boolean checkEquals,
Object... inputParam ) {
try {
ImageBase[] larger = new ImageBase[inputParam.length];
ImageBase[] subImg = new ImageBase[inputParam.length];
Class paramDesc[] = new Class[inputParam.length];
Object[] inputModified = new Object[inputParam.length];
for (int i = 0; i < inputParam.length; i++) {
if (ImageBase.class.isAssignableFrom(inputParam[i].getClass())) {
ImageBase img = (ImageBase)inputParam[i];
// copy the original image inside of a larger image
larger[i] = img.createNew(img.getWidth() + 10, img.getHeight() + 12);
// extract a sub-image and make it equivalent to the original image.
subImg[i] = larger[i].subimage(5, 6, 5 + img.getWidth(), 6 + img.getHeight(), null);
subImg[i].setTo(img);
}
// the first time it is called use the original inputs
inputModified[i] = inputParam[i];
paramDesc[i] = inputParam[i].getClass();
}
// first try it with the original image
Method m = findMethod(testClass.getClass(), function, paramDesc);
m.invoke(testClass, inputModified);
// now try it with the sub-image
for (int i = 0; i < inputModified.length; i++) {
if (subImg[i] != null)
inputModified[i] = subImg[i];
}
m.invoke(testClass, inputModified);
// the result should be the identical
if (checkEquals) {
for (int i = 0; i < inputParam.length; i++) {
if (subImg[i] == null)
continue;
assertEquals((ImageBase)inputModified[i], subImg[i], 0);
}
}
} catch (InvocationTargetException | IllegalAccessException e) {
throw new RuntimeException(e);
}
}
/**
* Searches for a function which is a perfect match. if none it exists it checks
* to see if any matches that could accept an input of the specified type. If there
* is only one such match that is returned.
*/
public static Method findMethod( Class type, String name, Class... params ) {
Method methods[] = type.getMethods();
List found = new ArrayList<>();
for (Method m : methods) {
if (m.getName().compareTo(name) != 0)
continue;
Class a[] = m.getParameterTypes();
if (a.length != params.length)
continue;
boolean match = true;
for (int i = 0; i < a.length; i++) {
if (a[i] != params[i]) {
match = false;
break;
}
}
if (match) {
// its a perfect match
return m;
}
// see if it could be called with these parameters
match = true;
for (int i = 0; i < a.length; i++) {
if (params[i] == a[i])
continue;
if (a[i].isPrimitive()) {
if (a[i] == Boolean.TYPE && params[i] == Boolean.class)
continue;
if (a[i] == Byte.TYPE && params[i] == Byte.class)
continue;
if (a[i] == Short.TYPE && params[i] == Short.class)
continue;
if (a[i] == Integer.TYPE && params[i] == Integer.class)
continue;
if (a[i] == Long.TYPE && params[i] == Long.class)
continue;
if (a[i] == Float.TYPE && params[i] == Float.class)
continue;
if (a[i] == Double.TYPE && params[i] == Double.class)
continue;
}
if (!a[i].isAssignableFrom(params[i])) {
match = false;
break;
}
}
if (match) {
found.add(m);
}
}
if (found.size() == 1) {
return found.get(0);
}
throw new RuntimeException("Couldn't find matching *public* function to " + name);
}
/**
* Looks up the static method then passes in the specified inputs.
*/
public static void callStaticMethod( Class classType, String name, Object... inputs ) {
Class params[] = new Class[inputs.length];
for (int i = 0; i < inputs.length; i++) {
params[i] = inputs[i].getClass();
}
Method m = findMethod(classType, name, params);
if (m == null) {
for (int i = 0; i < inputs.length; i++) {
if (params[i] == Integer.class) {
params[i] = int.class;
} else if (params[i] == Float.class) {
params[i] = float.class;
} else if (params[i] == Double.class) {
params[i] = double.class;
}
}
m = findMethod(classType, name, params);
}
if (m == null)
throw new IllegalArgumentException("Method not found");
try {
m.invoke(null, inputs);
} catch (IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException(e);
}
}
/**
* Searches for all functions with the specified name in the target class. Once it finds
* that function it invokes the specified function in the owner class. That function must
* take in a Method as its one and only parameter. The method will be one of the matching
* ones in the target class.
*
* @return The number of times 'targetMethod' was found and called.
*/
public static int findMethodThenCall( Object owner, String ownerMethod, Class target, String targetMethod ) {
int total = 0;
Method[] list = target.getMethods();
try {
Method om = owner.getClass().getMethod(ownerMethod, Method.class);
for (Method m : list) {
if (!m.getName().equals(targetMethod))
continue;
om.invoke(owner, m);
total++;
}
} catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException(e);
}
return total;
}
public static void assertEquals( double a[], double b[], double tol ) {
for (int i = 0; i < a.length; i++) {
double diff = Math.abs(a[i] - b[i]);
if (diff > tol)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( double a[], float b[], double tol ) {
for (int i = 0; i < a.length; i++) {
double diff = Math.abs(a[i] - b[i]);
if (diff > tol)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( double a[], int b[] ) {
for (int i = 0; i < a.length; i++) {
double diff = Math.abs((int)a[i] - b[i]);
if (diff != 0)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( byte a[], byte b[] ) {
for (int i = 0; i < a.length; i++) {
int diff = Math.abs(a[i] - b[i]);
if (diff != 0)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( short a[], short b[] ) {
for (int i = 0; i < a.length; i++) {
int diff = Math.abs(a[i] - b[i]);
if (diff != 0)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( int a[], int b[] ) {
for (int i = 0; i < a.length; i++) {
int diff = Math.abs(a[i] - b[i]);
if (diff != 0)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( long a[], long b[] ) {
for (int i = 0; i < a.length; i++) {
long diff = Math.abs(a[i] - b[i]);
if (diff != 0)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( float a[], float b[], float tol ) {
for (int i = 0; i < a.length; i++) {
double diff = Math.abs(a[i] - b[i]);
if (diff > tol)
throw new RuntimeException("Element " + i + " not equals. " + a[i] + " " + b[i]);
}
}
public static void assertEquals( ImageBase imgA, ImageBase imgB, double tol ) {
// if no specialized check exists, use a slower generalized approach
if (imgA instanceof ImageGray) {
GImageGray a = FactoryGImageGray.wrap((ImageGray)imgA);
GImageGray b = FactoryGImageGray.wrap((ImageGray)imgB);
for (int y = 0; y < imgA.height; y++) {
for (int x = 0; x < imgA.width; x++) {
double valA = a.get(x, y).doubleValue();
double valB = b.get(x, y).doubleValue();
double difference = valA - valB;
if (Math.abs(difference) > tol)
throw new RuntimeException("Values not equal at (" + x + "," + y + ") " + valA + " " + valB);
}
}
} else if (imgA instanceof Planar && imgB instanceof Planar) {
Planar a = (Planar)imgA;
Planar b = (Planar)imgB;
if (a.getNumBands() != b.getNumBands())
throw new RuntimeException("Number of bands not equal");
for (int band = 0; band < a.getNumBands(); band++) {
assertEquals(a.getBand(band), b.getBand(band), tol);
}
} else if (imgA instanceof ImageMultiBand && imgB instanceof ImageMultiBand) {
ImageMultiBand a = (ImageMultiBand)imgA;
ImageMultiBand b = (ImageMultiBand)imgB;
if (a.getNumBands() != b.getNumBands())
throw new RuntimeException("Number of bands not equal");
int numBands = a.getNumBands();
for (int y = 0; y < imgA.height; y++) {
for (int x = 0; x < imgA.width; x++) {
for (int band = 0; band < numBands; band++) {
double valA = GeneralizedImageOps.get(a, x, y, band);
double valB = GeneralizedImageOps.get(b, x, y, band);
double difference = valA - valB;
if (Math.abs(difference) > tol)
throw new RuntimeException("Values not equal at (" + x + "," + y + ") " + valA + " " + valB);
}
}
}
} else {
throw new RuntimeException("Unknown image type");
}
}
public static void assertEqualsInner( ImageBase imgA, ImageBase imgB, double tol, int borderX, int borderY,
boolean relative ) {
// if no specialized check exists, use a slower generalized approach
if (imgA instanceof ImageGray) {
GImageGray a = FactoryGImageGray.wrap((ImageGray)imgA);
GImageGray b = FactoryGImageGray.wrap((ImageGray)imgB);
for (int y = borderY; y < imgA.height - borderY; y++) {
for (int x = borderX; x < imgA.width - borderX; x++) {
double valA = a.get(x, y).doubleValue();
double valB = b.get(x, y).doubleValue();
double error = Math.abs(valA - valB);
if (relative) {
double denominator = Math.abs(valA) + Math.abs(valB);
if (denominator == 0)
denominator = 1;
error /= denominator;
}
if (error > tol)
throw new RuntimeException("Values not equal at (" + x + "," + y + ") " + valA + " " + valB);
}
}
} else if (imgA instanceof Planar) {
Planar a = (Planar)imgA;
Planar b = (Planar)imgB;
if (a.getNumBands() != b.getNumBands())
throw new RuntimeException("Number of bands not equal");
for (int band = 0; band < a.getNumBands(); band++) {
assertEqualsInner(a.getBand(band), b.getBand(band), tol, borderX, borderY, relative);
}
} else {
throw new RuntimeException("Unknown image type");
}
}
public static void assertEqualsInner( ImageBase imgA, ImageBase imgB, double tol,
int borderX0, int borderY0, int borderX1, int borderY1,
boolean relative ) {
// if no specialized check exists, use a slower generalized approach
if (imgA instanceof ImageGray) {
GImageGray a = FactoryGImageGray.wrap((ImageGray)imgA);
GImageGray b = FactoryGImageGray.wrap((ImageGray)imgB);
for (int y = borderY0; y < imgA.height - borderY1; y++) {
for (int x = borderX0; x < imgA.width - borderX1; x++) {
double valA = a.get(x, y).doubleValue();
double valB = b.get(x, y).doubleValue();
double error = Math.abs(valA - valB);
if (relative) {
double denominator = Math.abs(valA) + Math.abs(valB);
if (denominator == 0)
denominator = 1;
error /= denominator;
}
if (error > tol)
throw new RuntimeException("Values not equal at (" + x + "," + y + ") " + valA + " " + valB);
}
}
} else if (imgA instanceof ImageInterleaved) {
GImageMultiBand a = FactoryGImageMultiBand.wrap((ImageInterleaved)imgA);
GImageMultiBand b = FactoryGImageMultiBand.wrap((ImageInterleaved)imgB);
int numBands = a.getNumberOfBands();
for (int y = borderY0; y < imgA.height - borderY1; y++) {
for (int x = borderX0; x < imgA.width - borderX1; x++) {
for (int band = 0; band < numBands; band++) {
double valA = a.get(x, y, band).doubleValue();
double valB = b.get(x, y, band).doubleValue();
double error = Math.abs(valA - valB);
if (relative) {
double denominator = Math.abs(valA) + Math.abs(valB);
if (denominator == 0)
denominator = 1;
error /= denominator;
}
if (error > tol)
throw new RuntimeException("Values not equal at (" + x + "," + y + "," + band + ") " + valA + " " + valB);
}
}
}
} else if (imgA instanceof Planar) {
Planar a = (Planar)imgA;
Planar b = (Planar)imgB;
if (a.getNumBands() != b.getNumBands())
throw new RuntimeException("Number of bands not equal");
for (int band = 0; band < a.getNumBands(); band++) {
assertEqualsInner(a.getBand(band), b.getBand(band), tol, borderX0, borderY0, borderX1, borderY1, relative);
}
} else {
throw new RuntimeException("Unknown image type");
}
}
public static void assertEqualsRelative( ImageBase imgA, ImageBase imgB, double tolFrac ) {
// if no specialized check exists, use a slower generalized approach
if (imgA instanceof ImageGray) {
GImageGray a = FactoryGImageGray.wrap((ImageGray)imgA);
GImageGray b = FactoryGImageGray.wrap((ImageGray)imgB);
for (int y = 0; y < imgA.height; y++) {
for (int x = 0; x < imgA.width; x++) {
double valA = a.get(x, y).doubleValue();
double valB = b.get(x, y).doubleValue();
double difference = valA - valB;
double max = Math.max(Math.abs(valA), Math.abs(valB));
if (max == 0)
max = 1;
if (Math.abs(difference)/max > tolFrac)
throw new RuntimeException("Values not equal at (" + x + "," + y + ") " + valA + " " + valB);
}
}
} else if (imgA instanceof ImageInterleaved) {
GImageMultiBand a = FactoryGImageMultiBand.wrap(imgA);
GImageMultiBand b = FactoryGImageMultiBand.wrap(imgB);
float valueA[] = new float[a.getNumberOfBands()];
float valueB[] = new float[b.getNumberOfBands()];
for (int y = 0; y < imgA.height; y++) {
for (int x = 0; x < imgA.width; x++) {
a.get(x, y, valueA);
b.get(x, y, valueB);
for (int i = 0; i < a.getNumberOfBands(); i++) {
double valA = valueA[i];
double valB = valueB[i];
double difference = valA - valB;
double max = Math.max(Math.abs(valA), Math.abs(valB));
if (max == 0)
max = 1;
if (Math.abs(difference)/max > tolFrac)
throw new RuntimeException("Values not equal at (" + x + "," + y + ") " + valA + " " + valB);
}
}
}
} else if (imgA instanceof Planar) {
Planar a = (Planar)imgA;
Planar b = (Planar)imgB;
if (a.getNumBands() != b.getNumBands())
throw new RuntimeException("Number of bands not equal");
for (int band = 0; band < a.getNumBands(); band++) {
assertEqualsRelative(a.getBand(band), b.getBand(band), tolFrac);
}
} else {
throw new RuntimeException("Unknown image type");
}
}
public static void assertEqualsBorder( ImageBase imgA, ImageBase imgB, double tol, int borderX, int borderY ) {
if (imgA instanceof ImageGray) {
assertEqualsBorder((ImageGray)imgA, (ImageGray)imgB, tol, borderX, borderY);
} else if (imgA instanceof ImageInterleaved) {
assertEqualsBorder((ImageInterleaved)imgA, (ImageInterleaved)imgB, tol, borderX, borderY);
} else if (imgA instanceof Planar) {
Planar _imgA_ = (Planar)imgA;
Planar _imgB_ = (Planar)imgB;
final int numBands = _imgA_.getNumBands();
for (int band = 0; band < numBands; band++) {
assertEqualsBorder(_imgA_.getBand(band), _imgB_.getBand(band), tol, borderX, borderY);
}
} else {
throw new RuntimeException("Unsupported image type");
}
}
/**
* Checks to see if only the image borders are equal to each other within tolerance
*/
public static void assertEqualsBorder( ImageGray imgA, ImageGray imgB, double tol, int borderX, int borderY ) {
if (imgA.getWidth() != imgB.getWidth())
throw new RuntimeException("Widths are not equals");
if (imgA.getHeight() != imgB.getHeight())
throw new RuntimeException("Heights are not equals");
GImageGray a = FactoryGImageGray.wrap(imgA);
GImageGray b = FactoryGImageGray.wrap(imgB);
for (int y = 0; y < imgA.getHeight(); y++) {
for (int x = 0; x < borderX; x++) {
compareValues(tol, a, b, x, y);
}
for (int x = imgA.getWidth() - borderX; x < imgA.getWidth(); x++) {
compareValues(tol, a, b, x, y);
}
}
for (int x = borderX; x < imgA.getWidth() - borderX; x++) {
for (int y = 0; y < borderY; y++) {
compareValues(tol, a, b, x, y);
}
for (int y = imgA.getHeight() - borderY; y < imgA.getHeight(); y++) {
compareValues(tol, a, b, x, y);
}
}
}
/**
* Checks to see if only the image borders are equal to each other within tolerance
*/
public static void assertEqualsBorder( ImageInterleaved imgA, ImageInterleaved imgB, double tol, int borderX, int borderY ) {
if (imgA.getWidth() != imgB.getWidth())
throw new RuntimeException("Widths are not equals");
if (imgA.getHeight() != imgB.getHeight())
throw new RuntimeException("Heights are not equals");
int numBands = imgA.numBands;
GImageMultiBand a = FactoryGImageMultiBand.wrap(imgA);
GImageMultiBand b = FactoryGImageMultiBand.wrap(imgB);
for (int y = 0; y < imgA.getHeight(); y++) {
for (int x = 0; x < borderX; x++) {
for (int band = 0; band < numBands; band++) {
compareValues(tol, a, b, x, y, band);
}
}
for (int x = imgA.getWidth() - borderX; x < imgA.getWidth(); x++) {
for (int band = 0; band < numBands; band++) {
compareValues(tol, a, b, x, y, band);
}
}
}
for (int x = borderX; x < imgA.getWidth() - borderX; x++) {
for (int y = 0; y < borderY; y++) {
for (int band = 0; band < numBands; band++) {
compareValues(tol, a, b, x, y, band);
}
}
for (int y = imgA.getHeight() - borderY; y < imgA.getHeight(); y++) {
for (int band = 0; band < numBands; band++) {
compareValues(tol, a, b, x, y, band);
}
}
}
}
private static void compareValues( double tol, GImageGray a, GImageGray b, int x, int y ) {
double normalizer = Math.abs(a.get(x, y).doubleValue()) + Math.abs(b.get(x, y).doubleValue());
if (normalizer < 1.0) normalizer = 1.0;
if (Math.abs(a.get(x, y).doubleValue() - b.get(x, y).doubleValue())/normalizer > tol)
throw new RuntimeException("values not equal at (" + x + " " + y + ") " + a.get(x, y) + " " + b.get(x, y));
}
private static void compareValues( double tol, GImageMultiBand a, GImageMultiBand b, int x, int y, int band ) {
double normalizer = Math.abs(a.get(x, y, band).doubleValue()) + Math.abs(b.get(x, y, band).doubleValue());
if (normalizer < 1.0) normalizer = 1.0;
if (Math.abs(a.get(x, y, band).doubleValue() - b.get(x, y, band).doubleValue())/normalizer > tol)
throw new RuntimeException("values not equal at (" + x + " " + y + " " + band + ") " + a.get(x, y, band) + " " + b.get(x, y, band));
}
public static void checkBorderZero( ImageGray outputImage, int border ) {
GImageGray img = FactoryGImageGray.wrap(outputImage);
for (int y = 0; y < img.getHeight(); y++) {
if (y >= border && y < img.getHeight() - border)
continue;
for (int x = 0; x < img.getWidth(); x++) {
if (x >= border && x < img.getWidth() - border)
continue;
if (img.get(x, y).intValue() != 0)
throw new RuntimeException("The border is not zero: " + x + " " + y);
}
}
}
public static void checkBorderZero( ImageGray outputImage, int borderX0, int borderY0, int borderX1, int borderY1 ) {
GImageGray img = FactoryGImageGray.wrap(outputImage);
for (int y = 0; y < img.getHeight(); y++) {
if (y >= borderY0 && y < img.getHeight() - borderY1)
continue;
for (int x = 0; x < img.getWidth(); x++) {
if (x >= borderX0 && x < img.getWidth() - borderX1)
continue;
if (img.get(x, y).intValue() != 0)
throw new RuntimeException("The border is not zero: " + x + " " + y);
}
}
}
public static void printDiff( ImageGray imgA, ImageGray imgB ) {
GImageGray a = FactoryGImageGray.wrap(imgA);
GImageGray b = FactoryGImageGray.wrap(imgB);
System.out.println("------- Difference -----------");
for (int y = 0; y < imgA.getHeight(); y++) {
for (int x = 0; x < imgA.getWidth(); x++) {
double diff = Math.abs(a.get(x, y).doubleValue() - b.get(x, y).doubleValue());
System.out.printf("%2d ", (int)diff);
}
System.out.println();
}
}
public static void printDiffBinary( GrayU8 imgA, GrayU8 imgB ) {
System.out.println("------- Difference -----------");
for (int y = 0; y < imgA.getHeight(); y++) {
for (int x = 0; x < imgA.getWidth(); x++) {
if (imgA.unsafe_get(x, y) != imgB.unsafe_get(x, y))
System.out.print(" x");
else
System.out.print(" .");
}
System.out.println();
}
}
public static Object randomArray( Class type, int length, Random rand ) {
Object ret;
if (type == byte[].class) {
byte[] data = new byte[length];
for (int i = 0; i < length; i++) {
data[i] = (byte)(rand.nextInt(Byte.MAX_VALUE - Byte.MIN_VALUE) + Byte.MIN_VALUE);
}
ret = data;
} else if (type == short[].class) {
short[] data = new short[length];
for (int i = 0; i < length; i++) {
data[i] = (short)(rand.nextInt(Short.MAX_VALUE - Short.MIN_VALUE) + Short.MIN_VALUE);
}
ret = data;
} else if (type == int[].class) {
int[] data = new int[length];
for (int i = 0; i < length; i++) {
data[i] = rand.nextInt(1000) - 500;
}
ret = data;
} else if (type == long[].class) {
long[] data = new long[length];
for (int i = 0; i < length; i++) {
data[i] = rand.nextLong();
}
ret = data;
} else if (type == float[].class) {
float[] data = new float[length];
for (int i = 0; i < length; i++) {
data[i] = rand.nextFloat() - 0.5f;
}
ret = data;
} else if (type == double[].class) {
double[] data = new double[length];
for (int i = 0; i < length; i++) {
data[i] = rand.nextDouble() - 0.5;
}
ret = data;
} else {
throw new RuntimeException("Unknown. " + type.getSimpleName());
}
return ret;
}
public static ImageDataType pritiveToImageDataType( Class type ) {
if (type == byte[].class || type == byte.class) {
return ImageDataType.I8;
} else if (type == short[].class || type == short.class) {
return ImageDataType.I16;
} else if (type == int[].class || type == int.class) {
return ImageDataType.S32;
} else if (type == long[].class || type == long.class) {
return ImageDataType.S64;
} else if (type == float[].class || type == float.class) {
return ImageDataType.F32;
} else if (type == double[].class || type == double.class) {
return ImageDataType.F64;
} else {
throw new RuntimeException("UNknown type");
}
}
public static Object primitive( Object v, Class type ) {
Number value = (Number)v;
if (type == byte.class) {
return value.byteValue();
} else if (type == short.class) {
return value.shortValue();
} else if (type == int.class) {
return value.intValue();
} else if (type == long.class) {
return value.longValue();
} else if (type == float.class) {
return value.floatValue();
} else if (type == double.class) {
return value.doubleValue();
} else {
throw new RuntimeException("Unknown. " + type.getSimpleName());
}
}
public static Object createInstance( Class type ) {
try {
return type.getConstructor().newInstance();
} catch (InstantiationException | IllegalAccessException | NoSuchMethodException | InvocationTargetException e) {
throw new RuntimeException(e);
}
}
}
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