Character Recognition is an Android app that allows the user to take a photo (or use existing image files on the device) and then apply the Tesseract OCR engine to extract the text in the photo. It is currently supporting English text, but other language support will be added in the future.
GNU Ocrad is an OCR (Optical Character Recognition) program and library based on a feature extraction method. It reads images in pbm (bitmap), pgm (greyscale), or ppm (color) formats and produces text in byte (8-bit) or UTF-8 formats. It also includes a layout analyzer that is able to separate the columns or blocks of text normally found on printed pages. Ocrad can be used as a stand-alone console application, or as a backend to other programs.