It's no secret celebrities spend thousands upon thousands of dollars on maintaining their looks.

From bloody 'vampire facials' to placenta serums and of course plastic surgery - the fountain of youth runs deep.

But an app is now trying to cut through all the cosmetics to determine exactly how old a person looks based on a picture.

The website, called How old do I look, it allows people to analyse any image found on Bing, Microsoft's search engine, or upload their own.

It even allows users to search for celebrities - and see what Microsoft thinks their real ages are.




'This may be hard to believe but it took a couple of developers just a day to put this whole solution together, starting with the pipeline from the web page to the Machine Learning APIs to the real time streaming analytics and real time B,' said Microsoft.

It designed to site to show off the capabilities of its cloud server software.

It revealed the site today at its annual Build developers conference in San Francisco.

'We wanted to create an experience that was intelligent and fun could capture the attention of people globally, so we looked at the APIs available in the Azure Machine Learning Gallery,' it said.

The system works by analysing 27 points on the face.



Called face landmarks, they are a series of specifically detailed points on a face; typically points of face components like the pupils, canthus or nose.

'These attributes are predicted by using statistical algorithms and may not always be 100% precise.