Ø k £ ó Ð Q Wû æ R Þ Ì 關鍵詞：關鍵詞 ：：：屣逆式資訊隱藏技術、預釱誤差、直尣圖位移法。 Reversible Data Hiding Scheme Based on Hierarchy Prediction Abstract Due to the rise of digital era and information technology, the Internet has become an essential tool in our life Nowadays information technology can convert any media into digital