图像融合：对CT和MR图像进行了融合，采用多种融合准则，最后对融合图像进行了评价。-image fusion：fuse a CT image and a MR image by using several fusion rules,then estimate the quality of fusion result.

医学图像 CT/MR 图像的融合算法 使用梯度频率对两图像进行增强并融合，代码运行良好，适合初学者学习（注意无配准功能）(Medical image CT/MR image fusion algorithm uses gradient frequency to enhance and fuse two images, the code runs well, suitable for beginners to learn (pay attention to no registration fun