private PhotometricInterpreterFloat getPhotometricInterpreter() {
        return new PhotometricInterpreterFloat(f0, f1 + 1.0e-5f);
    }
Constructs a photometric interpreter. This initialization is performed in a dedicated method to ensure consistency throughout different phases of the
test.

@return a valid instance.
src/test/java/org/apache/commons/imaging/formats/tiff/TiffFloatingPointRoundTripTest.java