OpenCV C++

This repository demonstrates how to set up and build an OpenCV project using C++. The example implements feature detection and homography to identify objects in images.

Input images:

• box.png:

• box_in_scene.png:

Output image:

• output.png:

Prerequisites

• OpenCV

$ brew install opencv $ brew list --versions | grep opencv

• CMake

$ brew install cmake

Command Line

$ mkdir build
$ cd build
$ cmake .. .
$ make
$ cd ..
$ ./build/Main

For repeating building and running:

$ cd build && cmake .. && make && cd .. && ./build/Main

If the image is displayed, it's OK.

Key points:

• To separate your source code from files generated by cmake build, create a build directory first, then run "cmake .. ." to execute CMakeLists.txt.
• Compile with "make" to generate ./Main.
• Since the image file needs to be in the same directory as the source code when running, "cd .." to go up one level, then execute "./build/Main".