The experiment on a blurred text image restoration shows that the mean square error (MSE) of the improved NAS-RIF algorithm has a better convergence, and that the signal to noise ratio is improved.

• 对文字模糊图像的仿真结果表明，与原始算法相比，改进算法的均方误差曲线收敛性及稳定性更好，提高了恢复图像的信噪比。