what(): OpenCV(4.2.0) OpenCV/modules/highgui/src/window.cpp:634: error: (-2:Unspecified error)_what(): opencv(4.2.0) ../modules/highgui/src/windo

what(): OpenCV(4.2.0) OpenCV/modules/highgui/src/window.cpp:634: error: (-2:Unspecified error)

1. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function ‘cvNamedWindow’

terminate called after throwing an instance of 'cv::Exception'
  what():  OpenCV(4.2.0) /home/yongqiang/opencv_workspace/OpenCV/modules/highgui/src/window.cpp:634: error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function 'cvNamedWindow'

已放弃 (核心已转储)
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2. libgtk2.0-dev pkg-config

sudo apt-get install -y libgtk2.0-dev pkg-config
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3. -D WITH_GTK=ON

install-opencv.sh

######################################
# INSTALL OPENCV ON UBUNTU OR DEBIAN #
######################################

# -------------------------------------------------------------------- |
#                       SCRIPT OPTIONS                                 |
# ---------------------------------------------------------------------|
OPENCV_VERSION='4.2.0'       # Version to be installed
OPENCV_CONTRIB='NO'          # Install OpenCV's extra modules (YES/NO)
# -------------------------------------------------------------------- |

# |          THIS SCRIPT IS TESTED CORRECTLY ON          |
# |------------------------------------------------------|
# | OS               | OpenCV       | Test | Last test   |
# |------------------|--------------|------|-------------|
# | Debian 10.2      | OpenCV 4.2.0 | OK   | 26 Dec 2019 |
# |----------------------------------------------------- |
# | Debian 10.1      | OpenCV 4.1.1 | OK   | 28 Sep 2019 |
# |----------------------------------------------------- |
# | Ubuntu 18.04 LTS | OpenCV 4.1.0 | OK   | 22 Jun 2019 |
# | Debian 9.9       | OpenCV 4.1.0 | OK   | 22 Jun 2019 |
# |----------------------------------------------------- |
# | Ubuntu 18.04 LTS | OpenCV 3.4.2 | OK   | 18 Jul 2018 |
# | Debian 9.5       | OpenCV 3.4.2 | OK   | 18 Jul 2018 |



# 1. KEEP UBUNTU OR DEBIAN UP TO DATE

sudo apt-get -y update
# sudo apt-get -y upgrade       # Uncomment to install new versions of packages currently installed
# sudo apt-get -y dist-upgrade  # Uncomment to handle changing dependencies with new vers. of pack.
# sudo apt-get -y autoremove    # Uncomment to remove packages that are now no longer needed


# 2. INSTALL THE DEPENDENCIES

# Build tools:
sudo apt-get install -y build-essential cmake

# GUI (if you want GTK, change 'qt5-default' to 'libgtkglext1-dev' and remove '-DWITH_QT=ON'):
sudo apt-get install -y libgtk2.0-dev pkg-config qt5-default libvtk6-dev

# Media I/O:
sudo apt-get install -y zlib1g-dev libjpeg-dev libwebp-dev libpng-dev libtiff5-dev libjasper-dev \
                        libopenexr-dev libgdal-dev

# Video I/O:
sudo apt-get install -y libdc1394-22-dev libavcodec-dev libavformat-dev libswscale-dev \
                        libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev yasm \
                        libopencore-amrnb-dev libopencore-amrwb-dev libv4l-dev libxine2-dev

# Parallelism and linear algebra libraries:
sudo apt-get install -y libtbb-dev libeigen3-dev

# Python:
sudo apt-get install -y python-dev  python-tk  pylint  python-numpy  \
                        python3-dev python3-tk pylint3 python3-numpy flake8

# Java:
sudo apt-get install -y ant default-jdk

# Documentation and other:
sudo apt-get install -y doxygen unzip wget


# 3. INSTALL THE LIBRARY

wget https://github.com/opencv/opencv/archive/${OPENCV_VERSION}.zip
unzip ${OPENCV_VERSION}.zip # && rm ${OPENCV_VERSION}.zip
mv opencv-${OPENCV_VERSION} OpenCV

if [ $OPENCV_CONTRIB = 'YES' ]; then
  wget https://github.com/opencv/opencv_contrib/archive/${OPENCV_VERSION}.zip
  unzip ${OPENCV_VERSION}.zip && rm ${OPENCV_VERSION}.zip
  mv opencv_contrib-${OPENCV_VERSION} opencv_contrib
  mv opencv_contrib OpenCV
fi

cd OpenCV && mkdir build && cd build

if [ $OPENCV_CONTRIB = 'NO' ]; then
cmake -D CMAKE_BUILD_TYPE=Release -D OPENCV_GENERATE_PKGCONFIG=ON -D WITH_GTK=ON \
      -D WITH_QT=ON -D WITH_OPENGL=ON -D WITH_V4L=ON -D WITH_VTK=ON \
      -D WITH_TBB=ON -D CMAKE_INSTALL_PREFIX=/usr/local ..
fi

if [ $OPENCV_CONTRIB = 'YES' ]; then
cmake -DWITH_QT=ON -DWITH_OPENGL=ON -DFORCE_VTK=ON -DWITH_TBB=ON -DWITH_GDAL=ON \
      -DWITH_XINE=ON -DENABLE_PRECOMPILED_HEADERS=OFF \
      -DOPENCV_EXTRA_MODULES_PATH=../opencv_contrib/modules ..
fi

make -j8
sudo make install
sudo ldconfig


# 4. EXECUTE SOME OPENCV EXAMPLES AND COMPILE A DEMONSTRATION

# To complete this step, please visit 'http://milq.github.io/install-opencv-ubuntu-debian'.

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4. DisplayImage

DisplayImage.cpp

/*
 ============================================================================
 Name        : DisplayImage.cpp
 Author      : Yongqiang Cheng
 Version     : Version 1.0.0
 Copyright   : Copyright (c) 2019 Yongqiang Cheng
 Description : Display Image in C, Ansi-style
 ============================================================================
 */
 

#include <opencv2/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui.hpp>

#include <iostream>

using namespace cv;
using namespace std;


int main( int argc, char** argv )
{
    String imageName( "person.jpg" ); // by default
    if( argc > 1)
    {
        imageName = argv[1];
    }
    
    Mat image;
    
    image = imread( samples::findFile( imageName ), IMREAD_COLOR ); // Read the file
    
    if( image.empty() )                      // Check for invalid input
    {
        cout <<  "Could not open or find the image" << std::endl ;
        return -1;
    }
    
    namedWindow( "Display window", WINDOW_AUTOSIZE ); // Create a window for display.
    
    imshow( "Display window", image );                // Show our image inside it.
    
    waitKey(0); // Wait for a keystroke in the window
    
    return 0;
}
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DisplayImage.sh

g++ -std=c++11 DisplayImage.cpp -o DisplayImage `pkg-config --cflags --libs opencv4`

./DisplayImage person.jpg

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person.jpg

(base) yongqiang@famu-sys:~/makefile_work$ conda deactivate
yongqiang@famu-sys:~/makefile_work$ bash ./DisplayImage.sh 
yongqiang@famu-sys:~/makefile_work$ 
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