Restoring a faded autograph?

This might be a stupid question but I thought it was worth asking.

Back in 1996, I was able to get Mariano Rivera's autograph for free at a car dealership in central Jersey. This was way before he became the popular player he is today. Being 16 at the time, I had no prior experience with getting autographs so I ended up getting a personalized signed ball by him in Spanish. The unfortunate thing is that I got it signed in black ink. I know now to always do it in blue.

I look at the ball and you can see that it is starting to fade. Is there anyway to restore a faded autograph? I am assuming there isn't but it's worth to ask

there really is nothing that can be done at this point other than to keep further fading from happening by keeping it out of the light (sunlight or artificial).