TreeSnatcher Plus main screen. The default view is a blend between the current processing state and the original image. Here, after gray-scale conversion, binarization and skeletonization, the thinned branches were manually complemented where text overlaps the tree. The program then recognized all tree node locations and measured the branch lengths. At this moment, the Newick expression can be calculated.
Laubach et al. BMC Bioinformatics 2012 13:110 doi:10.1186/1471-2105-13-110