h.324的相关协议文档，包含h.324,h.223,h.245等协议官方文档，及部分官方中文版，搜集了很长时间，相信对做H.324的同行有用。,the protocol of h.324

3g-324m协议栈相关协议(H.223 H.245 3G-324M)-3g-324m agreement protocol stack (H.223 H.245 3G-324M)

the discrete wavelet transform (DWT) performs on the input images and then decompose the LL subband into low-, middle-, and high-intensity layers using the log-average luminance