Setting Epsilon to min values

[marathan]

Hi I am relatively new to coding. I recently switched from Foolbox 2.4.0 to the newer version 3.0.4.

In the previous version I was mostly using the FGSM or the PGD attack without the need to specify the epsilon value.

I noticed that in the new version I need to specify the espilon value/s within the attack()

Is there any way to avoid setting the epsilon value/s beforehand, and letting the attack compute a specific(possibly different) minimum epsilon value for each distinct pixel?

Thanks

[ines21]

it depends whether the attack you're trying to run is a minimization attack (CW for example) or a fixed epsilon (LinfPGD) attack. If it is a minimization attack by default, then you can just set the epsilons to None. Otherwise you have to specify the epsilon value. In this case, I suggest you try running the attack with a wide range of epsilons in order to find a suitable one.