实现了图像的灰度化并进一步用于视频监视控，语音信号的采集与处理，数字信号处理课设，混沌的判断指标Lyapunov指数计算。- Achieve a grayscale image and further control for video surveillance, Acquisition and Processing of the speech signal, digital signal processing class-based, Chaos indicator for Lyapunov