LDPC code is a good error correct code which interests telecommunication field recently.

LDPC码作为一种性能优异的纠错码，已经越来越引起通信领域的研究兴趣。

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The strength of the embedded watermark is image-adaptive according to the wavelets quantization noise, and combined with the error-correct code, it improved the characteristic to anti-attack.

根据小波域量化噪声自适应地确定嵌入强度，并结合纠错编码，提高了抗攻击能力。

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The strength of the embedded watermark is image-adaptive according to the wavelets quantization noise, and combined with the error-correct code, it improved the characteristic to anti-attack.

根据小波域量化噪声自适应地确定嵌入强度，并结合纠错编码，提高了抗攻击能力。

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