Cost is a huge issue. My spouse worked with an image processing professor on her master's degree and he was converting his entire group from Matlab to numpy. Wh

Cost is a huge issue. My spouse worked with an image processing professor on her master's degree and he was converting his entire group from Matlab to numpy. While academic licenses for Matlab are very cheap, they don't actually allow you to publish research in journals; for that you need a much more expensive class of license.