说明：  bp的matlab源代码 多层前馈网络用于图像压缩的网络模型、原理、算法及关键技术，并通过仿真实验说明了在BP神经网络图像压缩中，算法、激活函数和压缩率等参数的选择是至关重要的，它们与收敛时间以及重建图像的压缩性能息息相关。
(the multilayer feedforward network for image compression network model, theory, algorithm and key technologies, by simulation illustrates the BP neural network image compression algorithm, activation function and the compression ratio parameter selection is crucial, they are closely related to the convergence time and the reconstructed image compression performance.)