An interface to show image/video/capture using opencv and QT

采用QT和C++编写，用QT编写的界面，结合opencv编写的图像处理中直方图的相关处理，可作为opencv的入门小练习。-Using QT and C++ writing, written using QT interface, combined with the preparation of image processing opencv histogram correlation processing, can be used as an entry opencv little exerc