OCRFeeder is a document layout analysis and optical character recognition application. It is able to automatically outline a document image's contents, distinguish between graphics and text and perform OCR over the latter. It can export to several formats, its main one being ODT. OCRFeeder has a GTK+ graphical user interface that allows the user to control the application and, for example, edit and correct the automatic recognition. It can also be used from the command line for automation.
The Gideros Gestures object provides a way to define and detect gestures. You can define your own gestures by providing array of points that defines shapes and provides a callback function for each shape. It is also possible to detect gestures from a provided array of points. Additionally, this class can automatically track touch inputs to gather a collection of points and resolve it automatically, and automatically output what the user draws in real time.