Can you confirm that you're using the iradon function included in Image Processing Toolbox? The error message indicates the failure occurs on line 99 in iradon.m but the iradon.m in this toolbox in release R2024b only has 83 lines. It also does not have a parse_inputs local function (and again, doesn't have a line 249.)
What does this show you when you run it in your installation?
which -all iradon
I also checked and the gpuArray overload of iradon has a line 99, but it's in the help text block. That overload is also only 154 lines long and like the "regular" iradon.m does not have a local function named parse_inputs.
