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2018-07-19T14:12:05Z

Created page with " == Using OpenCV from C++ == Install libopencv-dev apt-get install libopencv-dev = Capture a frame from USB Camera = Create the file DisplayImage.cpp #include "opencv2/..."

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== Using OpenCV from C++ ==

Install libopencv-dev

apt-get install libopencv-dev

= Capture a frame from USB Camera =

Create the file DisplayImage.cpp

#include "opencv2/opencv.hpp"

using namespace cv;

int main(int, char**)
{
VideoCapture cap(0); // open the default camera
if(!cap.isOpened()) // check if we succeeded
return -1;

cap.set(CV_CAP_PROP_FRAME_WIDTH,1280);
cap.set(CV_CAP_PROP_FRAME_HEIGHT,1024);

Mat frame;
cap >> frame; // get a new frame from camera
// do any processing
imwrite("/tmp/image.png", frame);
return 0;
}

Create the CMakeLists.txt file

cmake_minimum_required(VERSION 2.8)
project( CaptureImage )
find_package( OpenCV REQUIRED )
add_executable( CaptureImage CaptureImage.cpp )
target_link_libraries( CaptureImage ${OpenCV_LIBS} )

Compile

cmake .
make

Using OpenCV from C++ - Revision history

Admin: Created page with " == Using OpenCV from C++ == Install libopencv-dev apt-get install libopencv-dev = Capture a frame from USB Camera = Create the file DisplayImage.cpp #include "opencv2/..."