JavaVis: open source code for computer vision subjects?

Abstract. In this paper we present the open source project JavaVis, oriented to Computer Vision teaching. It consists of a framework with several features that make it useful for that purpose. Some of them are: a) image format, supporting frames and bands for sequence processing, b) code with many algorithms available, it contains implementations of some of the most widely used algorithms in computer vision, c) 3D data support, d) a visual desktop for visualizing partial results. It was designed to be easy to use: the user does not have to deal with internal structures, and adding a new algorithm is a simple task. J We have developed three different modules, based on three different needs we have noticed in our subjects. The first one is a basic library for image processing. Besides the previously commented features, it supports geo-metrical data (edges, segments, points, etc.). The second module is based on the same working schema as the first one, but applied to 3D data. These two modules are enough for testing many well-known algorithms. They also suit the programming needs of students and teachers, as they can easily develop their own algorithms for the JavaVis framework. All JavaVis functions can be launched both from command line, as well as with the JavaVis Graphical User Interface. Finally we have extended JavaVis with a third module consisting of a visual desktop where differ-ent Computer Vision functions can be easily placed and connected. Its purpose is to visualize intermediate results in processes involving several functions, helping their better understanding. JavaVis, as its name suggests, is implemented in Java.