Build OpenCV of C++ with Bazel on Windows

A sample OpenCV C++ project demo built with Bazel on Windows.

• Acknowledgement to @Kristina & Rick Smith.

Dependencies

• Bazel 0.23.0 or later (https://www.bazel.build/)
• OpenCV 2.4.x or later (https://opencv.org/)

Install

1. Make sure OpenCV path is in your System Environment Variables.
2. In the WORKSPACE file, change the value of "path" to the OpenCV install path. For example:

new_local_repository(
    name = "opencv_install_path",
    path = "C:\\opencv\\build",         # add your OpenCV path here
    build_file = "opencv.BUILD",
)

3. In the opencv.BUILD file, locate the OpenCV libraries in "srcs" according to your C++ complier version:

• vc16 = Visual Studio 2019
• vc15 = Visual Studio 2017
• vc14 = Visual Studio 2015
• vc12 = Visual Studio 2013

  cc_library(
    name = "opencv_rule",
    srcs = glob(["x64/vc14/lib/*.lib"]),  # the lib location, under your OpenCV path
    hdrs = glob(["include/**/*.hpp",
                 "include/**/*.h"]),
    includes = ["include"],
    visibility = ["//visibility:public"], 
    linkstatic = 1,
)

Usage

Build the project:

bazel build //src:main

Run the binary:

\bazel-bin\src\main.exe