Update 18_UseMouse.cpp - Githubissues

QianMo / OpenCV3-Intro-Book-Src

:blue_book:《OpenCV3编程入门》书本配套源码 |《Introduction to OpenCV3 Programming》Book Source Code

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Closed yuhaim closed 6 years ago

yuhaim commented 6 years ago

remove unnecessary negative dimension handling codes. fixed random color changes during mouse drag

note: not so many changes, encoding force changed by github to utf-8