Fig. 2From: Optical coherence tomography angiography using the black-and-white pixel binarization histogram software: a new technique for evaluating healing of macular holes in two surgical techniquesa 3.0 x 3.0-mm scan of the outer retina of the same patient (left) and after Otsu binarization (right). The histogram obtained after binarization shows a total count of 102,400 pixels (83,066 black pixels [mode 0] and 19,334 white pixels [mode 255])Back to article page