Fig. 5From: Portrait of an artist at work: exploring Max Ernst’s surrealist techniquesThe Antipope, detail: comparison between a RGB (450, 550, 650 nm) and b chroma DI (1050–650, 650–550, 550–450 nm). Ernst created the horse-headed figure with an owl mask on the left, and the skeletal figure in the centre with a decalcomania base on which then added brushworkBack to article page