last updated: 2022-01-21
I can't guaranty a faultless project, so using the information is at one's own risk.
The structure of the homepage is given by the directory tree. The names of the directories are also the names and links in menu and sidebar. A simple configuration file allows to change CSS properties like the font-size or background colour.
|As a reminder for me (and others :)) I will document here simple code snippets and functions of OpenCV. This will cover:
+ how tor read an image and show it
+ working with images (get dimensions, reduce size and write an image to a file, creating a copy, cropping (slicing),
copying parts and setting pixels)
+ create an image and drawing with OpenCV
+ thresholding, filtering and working with masks
+ getting lines with cv.HoughLinesP() and finding circles with cv.HoughCircles()
|I needed a program to read pointer-type dials on an analogue gauge. To read the two pointers I used python 3 and opencv. Here you see the result:|
|My old weather station died. So I got a new one, this time with WiFi (instead of USB).
It's named WH3000 SE PRO. The station can upload the weather data to my own weather server using the ecowitt protocol. As I want to use the data in OpenHAB, I wrote a little Python script to parse the data and send it to my MQTT server.
|For my tutorials and my webpage I need drawings. For this I like to use Inkscape, first because it is open source and second because it is performant. The Inkscape files (