Where is radon and iradon in 2015b version ?

I cannot use find "radon()" function in 2015b edition of matlab. Can somebody please tell where is it?

Thanks in advance.

Answer 1

[Star Strider]

When I checked the documentation in my installation of R2015b, they were both in the Image Processing Toolbox.

See the documentation for radon.

[Star Strider]

Anterpal Sandhu’s ‘Answer’ moved here...

I do see it in my documentation but cannot use it :( I am getting an error.

Undefined function or variable 'iradon'.

[Star Strider]

First, run these from the Command Window (or a script), and see if that solves the problem:

restoredefaultpath 
rehash toolboxcache

If not, contact MathWorks Technical Support.

[Steven Lord]

Before contacting Technical Support, check if you have Image Processing Toolbox installed. If it's not listed in the output of the VER function in your installation, you will need to install that toolbox (purchasing it if it's not already part of your license) to use RADON and IRADON.

Answer 2

[Image Analyst]

>> which radon
C:\Program Files\MATLAB\R2015b\toolbox\images\images\radon.m
>> which iradon
C:\Program Files\MATLAB\R2015b\toolbox\images\images\iradon.m

[Image Analyst]

What does this show:

% Check that user has the Image Processing Toolbox installed.
hasIPT = license('test', 'image_toolbox');   % license('test','Statistics_toolbox'), license('test','Signal_toolbox')
if ~hasIPT
  % User does not have the toolbox installed.
  message = sprintf('Sorry, but you do not seem to have the Image Processing Toolbox.\nDo you want to try to continue anyway?');
  reply = questdlg(message, 'Toolbox missing', 'Yes', 'No', 'Yes');
  if strcmpi(reply, 'No')
    % User said No, so exit.
    return;
  end
end