实现了图像的加水印，去噪，加噪声等功能，算法优化非常好，几乎没有循环，用谱方法计算流体力学一些流动现象的整体稳定性。- Realize image watermarking, de-noising, plus noise and other functions, Algorithm optimization is very good, almost no circulation, Spectral methods of computational fluid dynamics flow of some of the overall stability of the phenomenon.