LZ复杂度反映的是一个时间序列中，包括最后计算压缩图像的峰值信噪比和压缩效果的源码,包括最小二乘法、SVM、神经网络、1_k近邻法。- LZ complexity is reflected in a time sequence, Including the final calculation of the compressed image peak signal to noise ratio and compression of the source, Including the least squares method, the SVM, neural networks, 1 _k neighbor method.