In this work we present a Java library, oriented to teaching computer vision. We have designed and built the library from the scratch with enfasis on readability and understanding rather than on efciency. However, the library can also be used for research purposes. | Journal of Technology and Science Education EXPERIENCES USING AN OPEN SOURCE SOFTWARE LIBRARY TO TEACH COMPUTER VISION SUBJECTS Miguel Cazorla, Diego Viejo University Insttute for Computng Research, University of Alicante Spain , dviejo@ Received December 2014 Accepted April 2015 Abstract Machine vision is an important subject in computer science and engineering degrees. For laboratory experimentaton, it is desirable to have a complete and easy-to-use tool. In this work we present a Java library, oriented to teaching computer vision. We have designed and built the library from the scratch with enfasis on readability and understanding rather than on efciency. However, the library can also be used for research purposes. JavaVis is an open source Java library, oriented to the teaching of Computer Vision. It consists of a framework with several features that meet its demands. It has been designed to be easy to use: the user does not have to deal with internal structures or graphical interface, and should the student need to add a new algorithm it can be done simply enough. Once we sketch the library, we focus on the experience the student gets using this library in several computer vision courses. Our main goal is to fnd out whether the students understand what they are doing, that is, fnd out how much the library helps the student in grasping the basic concepts of computer vision. In the last four years we have conducted surveys to assess how much the students have improved their skills by using this library. Keywords – Computer vision teaching, Open source, Engineering. ---------- 1 INTRODUCTION Computer vision is an important subject in computer science degrees. For laboratory experimentaton (practcal teaching), we need a complete and easy-to-use tool. In this work we present a Java library, which is oriented to teaching (JavaVis, 2015). For this purpose, we have designed and built the library bent on readability and understanding .