Gandalf is a computer vision and numerical algorithm library, written in C, which allows you to develop new applications that will be portable and run FAST. Dynamically reconfigurable vector, matrix and image structures allow efficient use of memory.

The major design features of Gandalf are
Efficient use of memory through dynamically reconfigurable structures;
Emphasis on support of numerical algorithms, especially optimisation;
A very flexible and efficient internal image representation,
A comprehensive set of matrix/vector operations, incorporating implicit matrix transpose & inverse, and in-place computation where appropriate;
Thread-safe.
Exploitation of the computational and compilation speed advantages of C over C++ in reducing the number of layers of abstraction over the raw data, an approach we believe is appropriate for simple objects such as matrices, vectors and images.