基于最优梯度估计及小波变换的图象边缘检测技术

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基于信号在不同尺度下小波变换系数模不同的变化特征,结合最优梯度估计算法提出了一种边缘检测方法。实验结果说明这种边缘提取方法可以较准确地提取出有较大噪声的图象的边缘。
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