feat(mediapipe): add lightweight opencv package

.eslintignore

@@ -1,3 +1,4 @@
 **/*.d.ts
 node_modules
 packages/paddlejs-enc/**/*
+packages/paddlejs-mediapipe/opencv/**/*

packages/paddlejs-mediapipe/opencv/README.md

@@ -0,0 +1,33 @@
+[中文版](./README_cn.md)
+
+# opencv_blur.js
+
+A lightweight npm package which just includes modules **core imgproc js video**.
+
+# modules 
+OpenCV modules:
+--     To be built:                 **core imgproc js video**
+--     Disabled:                    calib3d dnn features2d flann highgui imgcodecs ml photo stitching videoio world
+--     Disabled by dependency:      objdetect
+--     Unavailable:                 gapi java python2 python3 ts
+--     Applications:                -
+--     Documentation:               js
+--     Non-free algorithms:         NO
+
+
+# npm
+
+```bash
+npm install @paddlejs-mediapipe/opencv
+```
+
+# Usage
+
+```javascript
+import cv from '@paddlejs-mediapipe/opencv/library/opencv_blur';
+let logit = cv.imread('canvas');
+let dst = new cv.Mat();
+let ksize = new cv.Size(5, 5);
+let anchor = new cv.Point(-1, -1);
+cv.blur(logit, dst, ksize, anchor, cv.BORDER_DEFAULT);
+```

packages/paddlejs-mediapipe/opencv/README_cn.md

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+[English](./README.md)
+
+# opencv_blur.js
+
+一个轻量级 opencv 库，目前包含模块 **core imgproc js video**，主要用于边缘模糊处理。
+
+# 模块
+
+OpenCV 模块:
+--     包含:                 **core imgproc js video**
+--     禁用:                 calib3d dnn features2d flann highgui imgcodecs ml photo stitching videoio world
+
+# npm
+
+```bash
+npm install @paddlejs-mediapipe/opencv
+```
+
+# Usage
+
+```javascript
+import cv from '@paddlejs-mediapipe/opencv/library/opencv_blur';
+let logit = cv.imread('canvas');
+let dst = new cv.Mat();
+let ksize = new cv.Size(5, 5);
+let anchor = new cv.Point(-1, -1);
+cv.blur(logit, dst, ksize, anchor, cv.BORDER_DEFAULT);
+```

packages/paddlejs-mediapipe/opencv/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "@paddlejs-mediapipe/opencv",
+  "version": "0.0.1",
+  "description": "lightweight opencv.js",
+  "main": "library/",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [
+    "opencv", "blur", "core"
+  ],
+  "author": "",
+  "license": "ISC"
+}

packages/paddlejs-mediapipe/opencv/tsconfig.json

@@ -0,0 +1,7 @@
+{
+    "extends": "../../../tsconfig",
+    "include": [],
+    "exclude": [
+        "library/*.js"
+    ]
+}