It’s not unknown for artists to change their mind and paint over part of their work as their ideas develop. Earlier, I came across an article about a long-lost Vermeer cupid that conservationists had restored. He wasn’t the only one with mysteries to uncover.
Blue on Blue: Picasso blockbuster comes to Toronto in 2020
The show came together after the AGO, with the assistance of other institutions, including the National Gallery of Art, Northwestern University and the Art Institute of Chicago, used cutting-edge technology to scan several Blue Period paintings in its collection to reveal lost works underneath, namely La Soupe (1902) and La Miséreuse accroupie (also 1902).
More on that.
New research reveals secrets beneath the surface of Picasso paintings
Secrets beneath the surface of two Pablo Picasso paintings in the collection of the Art Gallery of Ontario (AGO) in Toronto have been unearthed through an in-depth research project, which combined technical analysis and art historical digging to determine probable influences for the pieces and changes made by the artist.
But x-ray and infrared analyses can only go so far. What if we roped in some neural networks to help bring these restored images to life?
This Picasso painting had never been seen before. Until a neural network painted it.
But from an aesthetic point of view, what the researchers managed to retrieve is disappointing. Infrared and x-ray images show only the faintest outlines, and while they can be used to infer the amount of paint the artist used, they do not show color or style. So a way to reconstruct the lost painting more realistically would be of huge interest. […]
This is where Bourached and Cann come in. They have taken a manually edited version of the x-ray images of the ghostly woman beneath The Old Guitarist and passed it through a neural style transfer network. This network was trained to convert images into the style of another artwork from Picasso’s Blue Period.
The result is a full-color version of the painting in exactly the style Picasso was exploring when he painted it. “We present a novel method of reconstructing lost artwork, by applying neural style transfer to x-radiographs of artwork with secondary interior artwork beneath a primary exterior, so as to reconstruct lost artwork,” they say.