added face mask overlay post

Author: Koriukina, Valeriia

FaceMaskOverlay/HR18-300W.pth

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) [2019] [Microsoft]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

FaceMaskOverlay/LICENCE

@@ -0,0 +1,60 @@
+# Using Facial Landmarks for Overlaying Faces with Medical Masks
+
+This repository contains the code for [Using Facial Landmarks for Overlaying Faces with 
+Masks](https://www.learnopencv.com/using-facial-landmarks-for-overlaying-faces-with-masks/) blog post.
+
+Most of the code is based on the
+[HRNet-Facial-Landmark-Detection](https://github.com/HRNet/HRNet-Facial-Landmark-Detection) repository, huge thanks to
+them.
+
+## Quick start
+
+### Environment
+
+This code is developed using Python 3.6 and PyTorch 1.0.0 on Ubuntu 16.04 with NVIDIA GPU. Other platforms or GPUs are
+not fully tested.
+
+### Installation
+
+1. Create virtual environment:
+
+You'll need to install [virtualenv](https://pypi.org/project/virtualenv/) package if you don't have it:
+
+```bash
+pip install virtualenv
+virtualenv -p python3.6 venv
+source venv/bin/activate
+```
+
+2. Install dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+3. You will also need the pre-trained weights, which you can take from here
+   [HR18-300W.pth](https://1drv.ms/u/s!AiWjZ1LamlxzeYLmza1XU-4WhnQ):
+
+```bash
+wget -O HR18-300W.pth https://pscm7q.by.files.1drv.com/y4m1ndEsUHxWtszPoyHY2BQ2Zdvh0-dgYW_5dtTcxX_YFP8p5YYADNSndm3tAj2f-U4aMPMuS6-VyMvWaCYaO2otLab4XWblhouZkbuIgzr3ZGem6A2b1Lm6Kb3WrYQL_m3D2hj8Y3ulD06kXpvsvsoN-YlmXd9NK12snBfQxrgQf7OVXYsP1xWJEZfN_1CKdLPl1xYNaNvCeQik5LiCnmB9g
+```
+
+### Run Demo
+
+To run the demo, you need to execute the following command in your terminal:
+
+```bash
+python3 overlay_with_mask.py --cfg experiments/300w/face_alignment_300w_hrnet_w18.yaml --landmark_model HR18-300W.pth --mask_image masks/anti_covid.png
+```
+
+Try out different masks from the `masks` folder or use yours, but don't forget to annotate them first.
+
+# AI Courses by OpenCV
+
+Want to become an expert in AI? [AI Courses by OpenCV](https://opencv.org/courses/) is a great place to start. 
+
+<a href="https://opencv.org/courses/">
+<p align="center"> 
+<img src="https://www.learnopencv.com/wp-content/uploads/2020/04/AI-Courses-By-OpenCV-Github.png">
+</p>
+</a>