the GNU OCR (Optical Character Recognition) program, implemented as a filter and 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...
a portable, optimizing, ahead-of-time compiler for the Java Programming Language. It can compile Java source code to Java bytecode (class files) or directly to native machine code, and Java bytecode to native machine code.