The Black Watch Museum Trust has plans to transform the base at Balhousie Castle, Perth, approved last month.

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In keeping with the ethos of the new-look museum, "The Night Watch" is surrounded by other militia portraits of the era, giving the piece context but also showing just how innovative Rembrandt's work was.

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The robot then draws out your portrait in a patch of sand, which you can watch live on YouTube and visitors can watch in person at the museum.

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