The authors present a new method of writer identification, employing the full power of multiple experiments, which yields a statistically significant result. Each individual binarized and segmented character is represented as a histogram of 512 binary pixel patterns—3 × 3 black and white patches. In the process of comparing two given inscriptions under a “single author” assumption, the algorithm performs a Kolmogorov–Smirnov test for each letter and each patch. The resulting
Arie Shaus, Eli Turkel, "Writer Identification in Modern and Historical Documents via Binary Pixel Patterns, Kolmogorov–Smirnov Test and Fisher’s Method" in Journal of Imaging Science and Technology, 2017, pp 010404-1 - 010404-9, https://doi.org/10.2352/J.ImagingSci.Technol.2017.61.1.010404