Download app to an old version of MATLAB

I have license for MATLAB 2020b, and on my computer there is an old version of MATLAB (2016a), I want only image processing toolbox, but I do not know how to do it.

Each time I click download button, they ask me to log in even I have logged in multiple times, then after I logged in, what I can download was just 2020b installing file. And during that, thought I can choose the toolbox, I have to install the whole MATLAB to continue.

Can I get the functions of the toolbox without installing the whole MATLAB again?

Answer 1

[Rik]

You can't. Toolboxes are tied to Matlab releases. This holds for all toolboxes by Mathworks for the past decade at least.

Installing a toolbox can be done in two ways:

1. During the normal setup process of installing Matlab.
2. By using the AddOn Manager (only for Matlab 2017a and newer).

To install R2016a, you will require a valid license to download it. You should be able to see a button 'download previous releases' on the download page. That should allow you to pick R2016a. You can try this direct link. That will allow you to download the setup for R2016a. It may be able to add a toolbox without affecting your other settings, I have never tried.

[Steven Lord]

To clarify your bullet point 1, I believe it is possible to run the installer and install just a toolbox in a directory that already contains an install of the appropriate release of MATLAB. You don't need to overwrite the existing installation of MATLAB with a new installation of the same release of MATLAB. It's been a while since I've done that, though.

However, note you can't mix releases. No installing the R2016a release of Image Processing Toolbox with your R2020b release of MATLAB or vice versa.