@Override
    public TiffRasterStatistics getSimpleStatistics() {
        return new TiffRasterStatistics(this, Float.NaN);
    }
Tabulates simple statistics for the raster and returns an instance containing general metadata.

@return a valid instance containing a safe copy of the current simple statistics for the raster.
src/main/java/org/apache/commons/imaging/formats/tiff/TiffRasterDataFloat.java