Figure 4
From: Simultaneous capture of the color and topography of paintings using fringe encoded stereo vision
Detail of the color image (left) and depth map (right) of the self-portrait by Rembrandt. Note the depth features like the three scratches made in the paint that reveal the red ground layer and elevate the paint around the scratches. In the top-right corner the canvas weave pattern can be distinguished and distributed over this sample we see large individual pigment particles protruding.