It is not a common occurrence for an art museum that showcases some of the world's most exclusive art to encourage patrons to touch the paintings. But the current exhibition, Hoy toca el Prado (Touching the Prado), at the Museo del Prado in Madrid is definitely an exception. The exhibit features six replicas of masterpieces, created with an advanced relief printing technique called "Didú." This technique allows the visually impaired to touch and "see" the art.
The technique was developed by the printing studio Estudios Durero. According to the studio, they start with a high-resolution photo of the original piece and then go through a painstaking process of selecting the textures, which are then printed on a canvas with special ink. A chemical process allows the originally flat surfaces to have volume and, finally, a print of the original is placed on top, creating a relief-style replica.