Computer Vision with OpenCV 3 and Qt5

Qt Essentials

These are the modules promised by Qt to be available on all supported platforms. They are basically the foundation of Qt and they contain the majority of the classes that are used by almost all Qt applications. Qt Essential modules include all of the general-purpose modules and classes. Pay real attention to the words general-purpose, since it's exactly what these modules are used for. The following is a brief list for a quick study of the existing modules and for later reference purposes:

Module	Description
Qt Core	These are core non-graphical classes used by other modules.
Qt GUI	These are base classes for graphical user interface (GUI) components. These include OpenGL.
Qt Multimedia	These are classes ...