Compared with the traditional de-nosing methods by threshold value and translationinvariance, the algorithm increases the signal to noise ratio.
与传统的阈值去噪法和基于平移不变量的去噪算法相比,该算法提高了信噪比。
2
However, the original contourlet transform has a certain redundancy and lacks translationinvariance, it tends to have its limitation in the applications such as image processing.
This paper analyses the influence of scale factor on moment invariant features in discrete, constructs a new moment invariant with both scale, translation and rotating invariance.