The images are all black after evaluation #131
Description
Hello, first of all, thank you for your great work. While reproducing your work, I encountered an issue. During the fourth step of evaluating metrics on HPatches, I used the checkpoint files from the logs directory in advance. After generating the NPZ files and performing the evaluation, I noticed that the images in the three generated folders all had completely black or blue backgrounds. However, when I used the NPZ files you provided in the logs folder for evaluation, this problem did not occur. Do you know what might have caused this issue? I look forward to your reply.