public AbstractTiffElement getOversizeValueElement() {
        if (isLocalValue()) {
            return null;
        }

        return new OversizeValueElement(getOffset(), value.length);
    }
Returns the TIFF field's offset/value field, derived from bytes 8-11.

@return the field's offset in a {@code long} of 4 packed bytes, or its inlined value &lt;= 4 bytes long encoded in the field's byte order.
src/main/java/org/apache/commons/imaging/formats/tiff/TiffField.java