train

first train vae

python tools/train_vqvae.py --config config/ppet.yaml

then train ldm

python tools/train_ddpm_vqvae.py --config config/ppet.yaml

sample

python tools/sample_ddpm_vqvae.py --config config/ppet.yaml

for changing to arbitrary dose level

change the configuration file's argument, im_path ,to any folders that contain PET images with different dose-level.