OpenCV Static WASM Docker

This Docker Image allows for OpenCV C++ applications to be brought to the web by providing OpenCV as a static library compiled for WASM.

Simply use the Emscripten toolchain along with path for the static library when compiling your application.

Image details

• OpenCV Trunk from Build Date

Option 1. Build Docker Image

• From within the directory of the Dockerfile execute the following command to build the image

docker build -t opencv-static-wasm .

• To run with bash and a shared volume

docker run -v <host_path>:<container_path> -ti opencv-static-wasm:latest bash

Option 2. Pull image from Docker Hub

• Go to the repository page bryankp/opencv-static-wasm
• Pull the latest image

docker pull bryankp/opencv-static-wasm:latest

• To run with bash and a shared volume

docker run -v <host_path>:<container_path> -ti bryankp/opencv-static-wasm:latest bash

Important paths

• The Emscripten toolchain is located at

/emsdk_portable/emscripten/sdk/cmake/Modules/Platform/Emscripten.cmake

• The static library is located at

/src/opencv/static_wasm

Further Details

• Emscripten base image by trzeci.
• Official OpenCV Linux Build Docs