How can I evaluate HDR image using SDR metrics that are not in the current code

[gzsun1416]

Thank you for your excellent work. I wonder if the high dynamic image encoded with PU21 needs to be quantized to 8 bits before using SDR metrics? I noticed that you used the psnr function provide by MATLAB in your code, but some image evaluation functions were not used, such as piqe, niqe, etc