您好！在进行数据预处理的时候，参考monodepth2的处理方法，里面有一部分是“The above conversion command creates images which match our experiments, where KITTI .png images were converted to .jpg on Ubuntu 16.04 with default chroma subsampling 2x2,1x1,1x1. We found that Ubuntu 18.04 defaults to 2x2,2x2,2x2, which gives different results, hence the explicit parameter in the conversion command.”有关于色度二次采样的，请问您知道在Ubuntu20.04上面应该设置成什么参数吗？
您好！在进行数据预处理的时候，参考monodepth2的处理方法，里面有一部分是“The above conversion command creates images which match our experiments, where KITTI .png images were converted to .jpg on Ubuntu 16.04 with default chroma subsampling 2x2,1x1,1x1. We found that Ubuntu 18.04 defaults to 2x2,2x2,2x2, which gives different results, hence the explicit parameter in the conversion command.”有关于色度二次采样的，请问您知道在Ubuntu20.04上面应该设置成什么参数吗？