声呐图像局部对比度增强方法

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提出一种利用声呐图像局部信息进行图像增强的方法。该方法根据声呐图像特点,利用图像局部均值和方差将声呐图像分为目标、背景和阴影3个区域,然后分别对这3个的区域像素进行增强处理。该方法原理简单,增强效果显著,适合于工程实际应用。
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