imageviewset() not returning an imageviewset object

I cannot create an imageviewset object using either of the following commands.

vSet = imageviewset()
vSet = imageviewset

Instead the following error is returned: Undefined function or variable 'imageviewset'.

I checked and I have the Computer Vision Toolbox installed, version 9.0. My MATLAB is version R2019a.

Any ideas? What do I need to do to get this to work?

Answer 1

[Qu Cao]

imageviewset is introduced in R2020a. If you are not able to upgrade to 20a, you can use viewSet as a workaround.