Have I done some mistake in the following line

function y = meanShiftseg(x,hs,hr,th,plotOn)
%%Argument Check
if nargin < 3
    error('please type help for function syntax');
elseif nargin == 3
    th = .25; plotOn = 1;
elseif nargin == 4
    if th<0 || th >255
        error('threshold should be in [0,255]');
    else
        plotOn = 1;
    end
elseif nargin == 5
    if sum(ismember(plotOn,[0,1])) == 0
        error('plotOn option has to be 0 or 1');
    end
elseif nargin>5
    error('too many input arguments');
end
%%initialization
%x = double(x);
[height,width,depth] = size(x);
y = x;
done = 0;
iter = 0;
if plotOn 
    *figure(randi(1000)+1000);* 
end

• Getting error *Undefined function or method 'randi' for input arguments of type 'double'.

Error in ==> meanShiftseg at 27 figure(randi(1000)+1000);

Error in ==> meanshiftdemo at 6 y = meanShiftseg(x,8,10)

[dpb]

You've aliased the builtin randi function somehow...

To check first

which randi

Or, just

clear randi

and try again

Answer 1

[Image Analyst]

The call to randi() is fine - check it yourself by typing randi(1000) into the command window. The problem is randi(1000)+1000 is some random number. But you don't have a figure with that handle ID number. You may have figures with handles of 1, 2, 3, etc. but you don't have one with an ID of 1397 (some random number). Don't even call figure unless you already have multiple figures and you need to switch to a specific one because functions like plot(), bar(), scatter(), etc. will automatically create a figure if one is not open yet. So just get rid of it.