Figure 2From: Computer-assisted analysis of painting brushstrokes: digital image processing for unsupervised extraction of visible features from van Gogh’s worksUnsupervised brushstroke extraction. (a) Portion of an image patch in the dataset extracted from the van Gogh painting The garden of Saint-Paul’s Hospital, November 1889, used with permission of the van Gogh Museum Amsterdam (Vincent van Gogh Foundation). (b) Grayscale image and location of a possible seed (e.g., randomly selected). (c) Extracted brushstroke.Back to article page