article_snippet: Now scientists have discovered Vincent van Gogh masterpiece's are falling victim to the artist's choice of pigments His used in His paint.
article_snippet: This allowed scientists to reconstruct how the painting would have originally looked.
article_snippet: scientists found that the pale brown floor should have been a richer purple and peach colour while the blue walls were originally an orange-red and violet.
article_snippet: When exposed to ultraviolet light, Professor Janssens team found the bright orange-yellow pigment darkened into a chocolate brown colour.
article_snippet: The researchers, from the University of Antwerp, Belgium, studied microscopic paint samples taken from Vincent van Gogh Wheat Stack Under a Cloudy Sky, which Professor Janssens painted in 1889.
article_snippet: The researchers, from the University of Antwerp, Belgium, studied microscopic paint samples taken from Van Gogh's Wheat Stack Under a Cloudy Sky, which he painted in 1889 examined a minute flake of paint taken from a globule on the surface of the pond in the artists oil on canvas painting Wheat Stack
article_snippet: The researchers, from the University of Antwerp, Belgium, studied microscopic paint samples taken from Van Gogh's Wheat Stack Under a Cloudy Sky, which he painted in 1889 found that around the red pigment in The researchers, from the University of Antwerp, Belgium, studied microscopic paint samples taken from Van Gogh's Wheat Stack Under a Cloudy Sky, which he painted in 1889 sample was a layer of plumbonacrite and then around that white crystals of lead carbonates, hydrocerussites and cerssites.
article_snippet: Scientists took a microscopic flake of paint from the pond in Van Gogh's Wheat Stack Under a Cloudy Sky (shown on the left) and found that beneath the surface the vivid red lead pigment originally used remained (top right and bottom right) but had degraded to grey and white colour on painting's surface (bottom centre) Descriptions by Van Gogh of the colour of Van Gogh lodgings that Van Gogh painted in The Bedroom show that the floor and walls actually contained more red pigment, giving more red pigment more vivid shades than more red pigment have today .
article_snippet: Experts have used computer reconstructions to boost the red in Van Gogh's The Bedroom to see how it would have originally looked before Experts faded under the bright lights that has caused the red pigment to degrade .
article_snippet: To make matters worse, however, during restoration efforts of the painting, experts have added zinc white pigments to Wheat Stake Under a Cloudy Sky in an attempt to boost what experts believed to be white pigments in the pond.
article_snippet: The findings could help future attempts to restore Van Gogh's paintings to Van Gogh's paintings original colours by allowing scientists to work out what the pigments used were.
highlights_snippet: Scientists examined Wheat Stack Under a Cloudy Sky and found Wheat Stack Under had faded .