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Effortlessly generate color-schemes for terminal emulators by a drop of a picture, powered by modern C++17, Qt5 framework, and OpenCV library. Notable features:

• Uses the K-means clustering algorithm to accurately identify dominant colors in an image
• Takes mere seconds for a color-scheme to appear in the terminal emulator

• Konsole (KDE)
• Xfce4 Terminal (Xfce4)
• LXTerminal (LXDE)
• JSON (save the color-scheme to a file)

Status

• OpenCV >= 3.2.0 (recommended: 3.4.2)
• Qt5 >= 5.9.5
• CMake >= 3.13
• g++ (preferably version 9.2.1)

For Debian (stable/testing/sid), the following packages should be enough:

qt5-default
zlib1g-dev
cmake
g++

Copy-paste the following commands as root:

# Required packages
apt install unzip wget cmake g++

# Download OpenCV (you can as well execute wget from your ~/Downloads foler)
wget https://github.com/opencv/opencv/archive/3.4.2.zip -O opencv-3.4.2.zip

# Extract archive
unzip opencv-3.4.2.zip && rm opencv-3.4.2.zip
cd opencv-3.4.2 && mkdir build && cd build

# Build OpenCV
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr/local ..
make -j$(nproc)
make install

The project builds successfully on Ubuntu 19.04, however, for the g++ (the C++ compiler), install the package g++-9. See the Issue #9 for a detailed workaround

As one person has pointed out, you need opencv3-opt from the AUR in order to build TermColor properly

git clone https://github.com/belijzajac/TermColor.git
cd TermColor
git submodule update --init --recursive
mkdir build && cd build
cmake ..
make -j$(nproc) TermColor

cd src
./TermColor

This project is available under the MIT License. See the LICENSE file for more info.