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我在 matlab 中有一个用于加密大小为 [512,512] 的图像的程序。运行程序后,我有大小为 [512,512](加密图像)的矩阵,但是当我想在我的磁盘图像中保存加密图像时,大小正在改变。有没有以原始尺寸保存图像的方法?