/**
* If null the dst is declared, otherwise it checks to see if the 'dst' as the same shape as
* 'src'.
*
* <p>The returned image will be 8-bit RGB
*/
private static BufferedImage checkInputs(ImageBase src, BufferedImage dst) {
if (dst != null) {
if (dst.getWidth() != src.getWidth() || dst.getHeight() != src.getHeight()) {
throw new IllegalArgumentException("image dimension are different");
}
} else {
dst = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_INT_RGB);
}
return dst;
}
// TODO make sure pixels outside are not modified of sub-matrix
// todo have the submatrices be from different shaped inputs
@SuppressWarnings({"unchecked"})
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 e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}