'rgb_0001.png' has a size of 512*512, but 'd_0001.npz' has a size of 256*256

[lzt02]

Hello, it is a wonderful job, but I have encountered some minor problems.

After executing generate_notex.py, I obtained rgb_0001.png and d_0001.npz, but the former has a size of 512 * 512, while the latter has a size of 256 * 256. When I ran visualizing. py, I also found that the shape of the image was 512 * 512, while the shapes of dmap and nmap were both 256 * 256, which would cause the code to error.

Thanks advance for your help.