OpenCV is currently not installed on the Astro Pi units on orbit, so we will just install whatever is the latest version.
As a side note about the camera, please take note of this blog post
. Particularly the blue filter (there will be one supplied with your Pi NoIR camera). The Blue filter will be installed on the Earth Observing Astro Pi unit for the duration of the mission. It basically stops visible red and green, but lets visible blue and infrared pass through into the camera. It permits a type of EO analysis of vegetation on ground. Infrared then goes into the red RGB channel of the image data.
We don't have any images taken from the ISS with this blue filter, but we do have some taken by that camera without any filter.
These are available here
- these are low res images (640x480) but you'll be able to get much higher res images when you run your code (2592x1944).
- the porthole is visible in the view, you may need to account for this and only examine the middle of the image
- the porthole may not be in the same place, when your code runs - so don't hard code this - detect it and accommodate
If you need some sample images with
the filter, they can be found on this flickr album