The Duke and Duchess of Cambridge are reportedly no longer infuriated about Catherine Middleton's nude photo scandal.

French magazine Closer printed topless pictures of Catherine while the pair were enjoying a holiday in Provence earlier this month.

A legal case was filed last week against parties involved with the dissemination of the images.

Prince William and Duchess Catherine are currently on a nine-day tour in Asia.

The couple have apparently put the controversy behind them and are attending to royal duties.

"Their motto is keep calm and carry on," a source told British newspaper the Mirror.

"They have had some time to take this in and talk it through and their anger has subsided. They have put it to bed and it has given them some closure to know legal action is being pursued."

Although Prince William and Duchess Catherine are no longer incensed, the pair intend on bringing guilty parties to justice.

"They are committed to redressing what they feel is the serious wrong done to them in what ways they can," a Palace source told the paper.

"They want to make sure French Closer and the photographer are held to account and to prevent this from happening again."