Fig. 5

Area selection accuracy on two lighting conditions and backgrounds. The identification of damaged areas by the two software’s that has the best accuracy (Ilastik and Assess), is assessed using the standard (Photoshop, top row). Results are shown for the brightest conditions on both backgrounds: w3 (white background, middle row) and b3 (black background, lower row). Damaged areas are represented by red colour (Assess and Photoshop) and black colour (Ilastik). Lighting conditions (brightness, contrast for each case): w3 and b3 (40,-20 White; 50,-10 Black, respectively). Black scale bar indicates 1 cm