QCV is a Qt-based computer vision framework library that provides an easy to use interface to display, analyze and run computer vision algorithms. The library is provided with practical examples to show what you can do with just a few lines of code. OpenCV is used as the supporting computer vision library.

QCV provides interfaces for C and C++. The C interface is a set of simple function calls to allow the user to visualize data and obtain events from the system and user input.

The C++ interface has more features allowing the user to run and analyze complex computer vision algorithm in a few lines of code (see the stereo and surf examples).

QCV offers a 2D visualization tool, an on-line on-the-fly parameter editor, a clock tool to evaluate computation times, and a control tool to manipulate input video and sequences of images.

Multiple application examples that demonstrate the main features of this framework are provided in the last release.

Check it out!


  • Computer vision toolbox including
  • Powerfull 2D visualization tool
  • 3D data visualization
  • On-the-fly parameter editor
  • Image sequence playback control tool
  • Clock handling
  • C and C++ interfaces
  • Application examples to show easy of use
  • Clear and intuitive programming style

Project Samples

Project Activity

See All Activity >

Follow qcv

qcv Web Site

Other Useful Business Software

Find out what (or who) is slowing down your network Find out what (or who) is slowing down your network Icon
Find out what (or who) is slowing down your network Icon

Get comprehensive network bandwidth analysis and performance monitoring with SolarWinds® Bandwidth Analyzer Pack.

Network slow, but you don't know the cause? Use Bandwidth Analyzer Pack (BAP) to monitor and analyze network bandwidth performance and traffic patterns. With BAP, you can identify which users, applications, and protocols are consuming the most bandwidth. You can also monitor Wireless LAN Controller traffic to see what applications and clients are using your wireless network. Try it free for 30 days!

Rate This Project

Login To Rate This Project

User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5

User Reviews

  • when compiling got an erro ~/qcv/qcv-code/imagePyramid.cpp:113:108: error: ‘pyrDown’ was not declared in this scope pyrDown( m_images_v[i-1], m_images_v[i], cv::Size( m_images_v[i-1].cols/2, m_images_v[i-1].rows/2 ) ); Using openCV3.1.0 is it OK? OH I made it with OpenCV2.4.9 now testing ( without QGL install thanks)

Read more reviews >

Additional Project Details



Intended Audience

Information Technology, Science/Research, Education, Advanced End Users, Developers, Engineering

User Interface


Programming Language

C++, C

Database Environment