博文

Bitwise operations: a case study

2018-2-28 00:47

Bitwise operators are those strange looking operators that may look hard to understand... but not any more! Example : unsigned char dataIn = {0,0,1,0,1,0,0,1}; //unsigned int status = 0; unsigned char status = 0; int main() { for (int i=0; i4; i++) { &n ...

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Conversion between QImage and CV Images

2018-2-20 09:55

QImage is a Qt class for image handling (I/O and simple pixel access and manipulation), but it is far from a right choice for image processing. Interfacing Qt an OpenCV involves a natural need for converting QImage to OpenCV images of Mat. Here presents some solutions for their conversions. 1. F ...

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Create Qt widgets

2018-2-10 05:37

QWidget ( http://doc.qt.io/qt-5/qwidget.html ) The QWidget class is the base class of all user interface objects. The widget is the atom of the user interface: it receives mouse, keyboard and other events from the window system, and paints a representation of itself on the screen. Every wi ...

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Summary of the issues with Qt-OpenCV

2018-2-8 02:12

1. C2039: 'UnicodeUTF8': is not a member of 'QApplication' Solution: delete the argument ' QApplication ::UnicodeUTF8))' 2. C1083: Cannot open include file: 'QtGui/QAction': No such file or directory Solution: QAction is shifted to QtWidgets (this is ...

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