Hi,
It seems that DIP may suffer from what’s called “dataset optimization”, which can explain the sub-optimal results on our provided dataset. To mitigate this issue, a new dataset (“dataset-v2”), which conforms with the results reported in the DIP paper (i.e. PSNR of +29dB), is provided to you.
To download it, please add the following cell to your notebook (say after the “Download dataset” cell):
#@title Download dataset-v2
#@markdown Please run this cell to download dataset-v2 (which conforms with PSNR of +29dB).
# download images
!wget -q https://wis-intro-vision-2019.wikidot.com/local--files/assignments/ex5-data-v2.tar.gz
!tar -zxf ex5-data-v2.tar.gz && rm -f ex5-data-v2.tar.gz
To load it, please use the following code:
# dataset = load_dataset() # loads old dataset
# dataset = load_dataset('dataset') # loads old dataset
dataset = load_dataset('dataset-v2') # loads new dataset
For your convenience, the images in “dataset-v2” were resized to the same size as the original images (i.e. 256x256), so other than the two changes mentioned above – the switch should be transparent to you.
Please let us know should any problems arise.
Best,
The course staff