How best to implement interface with overloads?

Let's say I have a class that processes images and has an overloaded method:

ProcessImages(StorageFolder src, ProcessOptions options)
ProcessImages(StorageFolder src, ProcessOptions options, IProgress<int> progress)

What would be the correct way to create an interface to this class?

Option 1: Declare both methods in one interface?

Option 2: Create two interfaces with one method in each?

Another option?