采用小渡变换技术对遥感图像进行去噪、增强 在此基础上利用数学形态学的 方法提取图像中的人造帚物-Using wavelet transform technique for remote sensing image denoising, enhancement on this basis the use of mathematical morphology to extract the image of man-made objects broom

PHT矩分解。用于音频或者图像数据的极谐波变换，使音频数据在受攻击后仍能够较好的提取水印-PHT matrix decomposition.Audio frequency or image data of Fourier transform, the audio data in attack can still good after extracting the watermark