对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). a

HAEMARRAGE DETECTION IS USED TO DETECT THE haemarrage in the head. in this the code is written in matlab code.while analysing the image by using this algorithm we can detect the haemarrage.in this several feature extraction is needed.