Merge branch 'master' of https://dev.itk.ppke.hu/uavVisionLab/telloCodeHunt

Readme.md

+# Tello code hunt
+This is a Python script to control a <a href="https://www.ryzerobotics.com/tello-edu" target="_blank">DJI Tello EDU drone</a> based on the <a href="https://github.com/damiafuentes/DJITelloPy" target="_blank">djitellopy</a>, and the <a href="https://www.pygame.org/" target="_blank">pygame</a> libraries. The drone goes through a small track, where there are QR codes which are associated with images to project onto the drone's video as an AR setup. The QR codes are decoded with the <a href="https://www.dynamsoft.com/Products/Dynamic-Barcode-Reader.aspx" target="_blank">Dynamsoft Barcode Reader SDK</a> and the AR images are projected onto the frames with <a href="https://opencv.org/" target="_blank">OpenCV</a>.
+You need a license for the Dynamsoft Barcode Reader SDK - there is a 30 days trial license.
+The scripts was designed to run on a Windows computer, but it can be modified for Mac and Linux too.
+## Installation
+I have used Python 3.7.9 from the <a href="https://www.microsoft.com/en-us/p/python-37/9nj46sx7x90p?activetab=pivot:overviewtab" target="_blank">MS Store</a>. At the time Python 3.6 and 3.8 was not working with the Tello - had problems to decode the h264 frames and Python 3.9 was not working with the dbr (QR reader).
+Also, the latest numpy (1.19.4) at the time had problems on Windows.
+The installastion steps, when the Python is installed from the MS Store:
+ - pip install djitellopy=="1.5" (this should intall pygame and opencv-python too, I have used version 1.5)
+ - pip install numpy=="1.19.3" (to fix the Windows-><-numpy issue)
+ - pip install dbr=="7.5" (I had license for this, and 8.0 came out later)
+Here is the batch code:
+```batch
+pip install djitellopy=="1.5"
+pip install numpy=="1.19.3"
+pip install dbr=="7.5"
+```