复杂的二维双树离散小波变换(DWT)同样也引起了小波在六个不同的方向,但是,在这种情况下有两种小波在每个方向将如下所示。在每一个方向,一个两个小波可以被解释为一个复数的真实部分2 d小波,而其他小波可以被解释为一个复数的虚部2 d小波。因为复杂的版本有两倍的小波作为真正的版本的转换、复杂的版本是4次膨胀。复杂的二维双树被实现为四个严格采样可分二维DWTs操作在并行。然而,不同的过滤器集一起使用的行和列。正如在现实情况下,金额和不同的子带图像进行小波得到定向。复杂的二维双树DWT的图像x是由以下函数计算,cplxdual-The complex 2D Doubletree discrete wavelet transform (DWT) also caused a Wavelet in six different directions, but in this case there are two wavelet in each direction will be as follows. In each direction, a two wavelet can be interpreted as a plural real part of the 2 d wavelet other wavelet can be interpreted as the imaginary part of a complex of 2 d wavelet. Complex version wavelet twice as much as the real version of the conversion, the complex version 4 expansion. The complex 2D Doubletree achieve four rigorous sampling can be divided into two-dimensional DWTs operating in parallel. However, different filter sets with rows and columns. As in the real case, the amount and the different sub-band image to the wavelet get directed. Complex two-dimensional image of Doubletree DWT x is calculated by the following function, cplxdual