OpenCV Build Script for Node.js

opencv-build is an npm package designed to automate the compilation of the native OpenCV library, including its `contrib` modules, from source code. It primarily serves as a crucial build dependency for Node.js projects that integrate with OpenCV, most notably `opencv4nodejs`. This package abstracts away the complex, platform-specific steps of fetching OpenCV source, configuring the build with CMake, and compiling the binaries, which is vital for enabling computer vision capabilities in Node.js applications across different operating systems. While the specific version `0.1.9` is older, the underlying build automation approach is still actively maintained and evolved, often through similar packages like `@u4/opencv-build` for current `opencv4nodejs` versions. Its key differentiator is providing a configurable, automated native build process for a significant external dependency, streamlining development workflows by minimizing manual native compilation efforts and ensuring compatibility with the Node.js runtime. Releases are typically tied to the needs of `opencv4nodejs` and OpenCV's own release cycle, without a strict independent cadence.