But there is another kind of packaging-the packaging of commodities.
可是还有另外一种包装，就是商品的包装。
Wasteful packaging will add to the price of commodities.
浪费的包装会抬高商品的价格。
In view of the problem that the pictures on commodities packaging may have distortion in watermark detection process, studies are carried out and a new blind digital watermark algorithm is proposed.
针对商品包装图像在水印检测过程中图像会发生变形的问题展开研究，提出一种基于非均值量化系数特征不变的盲数字水印方案。
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