Map overlay analysis is an important method for the synthetical analysis and evaluation ofgeographical environment.

地图叠置分析是地理环境综合分析和评价的一种重要手段.

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This algorithm overcomes the limitation of those proposed algorithm previously in synthetical analysis ability.

同时,该算法很好的克服了之前数字水印算法对篡改的综合分析能力弱的缺陷.

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