The experienced goalkeeper completed his move from Lyon over the weekend.
"I feel amazing,” the 27-year-old told LUTV. “It is a great thing to be here. It is really important for me.
“I would like to thank everyone for the trust and the warm welcome. It is incredible. It is a dream come true.
“When I first heard that the interest could get something serious and actually happen, I started to look for videos of the stadium, the atmosphere, the games, the highlights of the plays and the matches.
“It was a really exciting moment for me. I was really, really glad that the club showed interest. It was incredible. To sign here I am very, very happy.
“From the videos I saw the goal celebrations, especially this last game of the season, which was an away game, and saw the parade for the Championship title and the atmosphere at Elland Road."
Premier League a great challenge
Perri continued: “I watched the Premier League since I was really young and to see all the goalkeepers that have been in the Premier League, that have been successful in the Premier League, they were incredible goalkeepers.
“I think it is a great challenge for me, a great opportunity, and I am really happy and focused to be my best version here.
“One of the most important things as a goalkeeper for people to see me is to transmit a sense of trust, security, the calmness that the players, the fans, the staff, everybody looks at me in goal and feel safe, feel calm.
“I think it is the most important thing for a goalkeeper to transmit this sensation. So for me, this is really important. And after this, the thing I love to do the most is making saves and creating fast counterattacks.
“I want to feel the atmosphere, to see the fans and the stadium. I think it will be an incredible opportunity and an incredible stadium to play in.”
Farke happy welcoming Perri
Meanwhile, after their friendly win against SC Paderborn on Sunday, Farke explained the decision to bring in Perri.
He said, “We are all happy that we have Lucas with us. We are all happy that the deal is right now over the line and we can’t wait for him to start with us soon.
“We have a goalkeeper who is a really good age. Especially for a goalkeeper, young at age, but already with experience.
“For me, it is important that he comes with confidence. He had a really good season with Lyon, qualified for the Europa League. He comes with confidence and got lots of praise in the last season.”