Then it inserts the fragile watermark into LSB in the space domain of previous watermarked image.Moreover, it designs a rule to distinguish malicious tamper from unintentional tamper.

• 实验不仅考察鲁棒水印抵抗攻击的鲁棒性，而且还考察脆弱水印对鲁棒性的影响和篡改检测与定位的能力。