The CanvasCV project

This is an interactive canvas like drawing library for OpenCV. Currently only C++ is supported. Note also that this is a beta version and there are opened issues.

What is it good for ?

For a user interface with interactive GUI without any external GUI toolkit dependencies.

Supported features:

Supported interactive shapes:

• Line
• Arrow
• TextBox
• LineCrossing
• Quadrilateral
• Rectangle
• ShapesConnector
• LabeledShapesConnector

Capabilities:

• All shapes are draggable
• All shapes are editable
• Support for create/modify/delete callbacks

Build and install

Linux Building / Installing

Build dependencies

Make sure these are installed first and that their executables are in your path:

• cmake - should already be installed since you built OpenCV by yourself.
• git (optional) - you can also download the sources from GitHub.

Prepare to build

git clone https://github.com/sagi-z/CanvasCV.git
cd CanvasCV
mkdir build
cd build

By default cmake is building without the C++ demo

cmake ..
make

Here is how to build the test

cmake -DBUILD_TEST=ON ..
make

Install option 1 for Linux (from the build directory):

sudo make install

C++ Install option 2 for Linux - cleaner (from the build directory):

cpack -G DEB
sudo dpkg -i ./canvascv-1.0.0-Linux.deb

C++ Usage

Linux

Assuming installation in '/usr/local', add to cflags '-I/usr/local/include' and to link flags '-L/usr/local/lib -lcanvascv'

Here is a minimal CMakeLists.txt example:

CMAKE_MINIMUM_REQUIRED(VERSION 2.8)

PROJECT(myapp)

FIND_PACKAGE(OpenCV 3.1.0 REQUIRED)

INCLUDE_DIRECTORIES(${OpenCV_INCLUDE_DIRS} "/usr/local/include")

ADD_EXECUTABLE(myapp main.cpp)

FIND_LIBRARY(CanvasCV_LIB canvascv "/usr/local/lib")
TARGET_LINK_LIBRARIES (myapp ${CanvasCV_LIB} ${OpenCV_LIBS})

Windows

make sure the include path and link path and library are set correctly.