中文说明：
图像质量评价指标：MSE，衡量融合图像相对于标准参考图像灰度的偏离程度。其值越小，说明复原图像和标准参考图像的差异越小，恢复效果越好。
English Description：
Image quality evaluation index: MSE, which measures the deviation degree of the fusion image from the standard reference image. The smaller the value is, the smaller the difference between the restored image and the standard reference image is, and the better the restoration effect is