【摘要】 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。更多还原

【Abstract】 Based on different properties of the coefficient modulus of the signal in different scale wavelet transform,conjunction the best estimate of gra dient algorithm an edge detecting method is proposed.E xperimental results show that the me thod can extracts the image edge accurately.更多还原