A Semi-automatized Modular Annotation Tool for Ancient Manuscript Annotation
WebGT: An Interactive Web-Based System for Historical Document Ground Truth Generation
The OCRopus open source OCR system
LabelMe: A Database and Web-Based Tool for Image Annotation
Creating Ground Truth for Historical Manuscripts with Document Graphs and Scribbling Interaction
Aletheia - An Advanced Document Layout and Text Ground-Truthing System for Production Environments