BM3D二维线性变换
时间: 2024-03-10 09:25:36 浏览: 20
BM3D算法中的二维线性变换是由两个步骤组成的。首先,对于相似的块,进行正交变换。这个正交变换可以将块内的信息表示为一组系数。然后,将这些块的系数叠加在一起,形成一个三维矩阵。接下来,在这个三维矩阵上进行块间的正交变换,得到变换后的系数矩阵。这个二维线性变换的目的是在块内和块间同时捕获图像的特征信息,从而实现去噪效果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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