预报误差法参数辨识-松弛的思想，基于K均值的PSO聚类算法,实现了图像的加水印，去噪，加噪声等功能。- Prediction Error Method for Parameter Identification- the idea of relaxation, K-means clustering algorithm based on the PSO, Realize image watermarking, de-noising, plus noise and other functions.