init - 初始化项目

modules/js/perf/README.md

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+# OpenCV.js Performance Test
+
+## Node.js Version
+
+### Prerequisites
+
+1. node.js, npm: Make sure you have installed these beforehand with the system package manager.
+
+2. Benchmark.js: Make sure you have installed Benchmark.js by npm before use. Please run `npm install` in the directory `<build_dir>/bin/perf`.
+
+### How to Use
+
+For example, if you want to test the performance of cvtColor, please run `perf_cvtcolor.js` by node in terminal:
+
+```sh
+node perf_cvtcolor.js
+```
+
+All tests of cvtColor will be run by above command.
+
+If you just want to run one specific case, please use `--test_param_filter="()"` flag, like:
+
+```sh
+node perf_cvtcolor.js --test_param_filter="(1920x1080, COLOR_BGR2GRAY)"
+```
+
+## Browser Version
+
+### How to Use
+
+To run performance tests, please launch a local web server in <build_dir>/bin folder. For example, node http-server which serves on localhost:8080.
+
+Navigate the web browser to the kernel page you want to test, like http://localhost:8080/perf/imgproc/cvtcolor.html.
+
+You can input the parameter, and then click the `Run` button to run the specific case, or it will run all the cases.