AMSTERDAM (AP).- Vincent van Gogh must have been horrified when he returned from the hospital to his studio in Arles early in 1889 to find one of his favorite paintings damaged by moisture. He pressed newspaper to the canvas to protect it from further deterioration, and later rolled it up and sent it to his brother Theo in Paris. Ella Hendriks could still see traces of newsprint when she looked at “The Bedroom” under a microscope, as she picked and scraped at earlier restorations of the canvas and removed yellowing varnish that had been brushed on 80 years ago. Hendriks has completed a painstaking six-month restoration of the masterpiece, which returns to its place on the wall of the Van Gogh Museum on Friday. “The idea is to create a sort of balance, a feeling of rest,” Hendriks said of her task. The Bedroom is a familiar image.