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旋转不变局部三元模式算子在隐身效果评价中的应用

Keywords: 图像纹理,RILTP,隐身图像,评价

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Abstract:

根据局部二元模式算子(LBP)方法本身易受噪声影响等特点,提出一种改进的局部三元模式纹理分析方法(旋转不变LTP或称RILTP)用于评价隐身图像,将LBP中使用单一算子描述纹理替换为使用正负模式两个算子分别描述,提高了纹理描述的精确性和抗噪性;并以人眼主观评价结果为依据,将传统LBP方法与改进的LTP方法进行了隐身效果对比验证.分析结果表明:与传统LTP算子方法比较,RILTP算子具有更好的人眼主观评价一致性.

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