在深入研究图像像素灰度差分的基础上，提出了一种新颖有效的自适应信息隐藏算法。

Based on the detailed study of image pixel-value differencing, a novel and efficient adaptive information hiding algorithm was proposed.

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然而，如果在正向渲染路径下使用很多像素光照，有一些情况下合并物体并没有效果，下面解释。

However, when using many pixel lights in the Forward rendering path, there are situations where combining objects may not make sense, as explained below.

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实验结果表明，该算法能够很好地抑制噪声，准确地检测出阴影，明显比基于像素的算法有效。

Experimental results show that the proposed algorithm is robust to noise, can detect accurately shadows and is more efficient than the algorithm based on pixel.

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