Nowadays, many of the tools and applications used in the biomedical field are developed in MATLAB (The MathWorks, Inc., MA, USA). However, the C++ code is license-free so better suits the policy of code distributed in the form of Open Source. To facilitate the conversion from MATLAB to C++, MATLAB developers have recently created a toolbox called MATLAB Coder containing various functions and tools to facilitate a (semi-) automatic code conversion. In this book, using significant examples of increasing complexity, we show how to quickly and easily exploit the MATLAB Coder to create ".lib" static libraries, ".exe" executables and ".cpp" source code starting from MATLAB ".m" functions. In particular, starting from some case studies based on simple functions able to manage numerical inputs, we have shown how to manage various parameters of the MATLAB Coder toolbox, in order to be able to convert even complex functions based on image processing algorithms. Currently, in the literature there are no many manuals designed to guide step-by-step people interested in using the MATLAB Coder. We therefore hope that this document will be a valid help for developers interested in easily and quickly converting MATLAB code to C++ code.