Error with using createMask

every time I use createMask I get this error "Too many output arguments." what could be the problem ? I tried two examples in matlab documentation but still getting the same error

those are the examples

/////////////////////////

img = imread('pout.tif');

h_im = imshow(img);

e = imellipse(gca,[55 10 120 120]);

BW = createMask(e,h_im);

//////////////////////////

figure, imshow('pout.tif');

hpoly = impoly(gca);

BW = hpoly.createMask();

figure, imshow(BW);

thanks in advance

Answer 1

[Sean de Wolski]

That worked fine for me.

What line is the error on?

More than likely you have some function shadowing one of the builtins. For example maybe gca

which -all gca

Use which -all on all the functions on the offending line and rename the offending function so that it does not shadow the MATLAB functions

[Amani]

the error in the line that has createMask

can you please clarify ? what should I do ?

[Amani]

when I used which -all

I got this error Not enough input arguments.

[Amani]

when I used which -all gca I got built-in (C:\MATLAB\R2012b\toolbox\matlab\graphics\gca) what is this?

[Amani]

this is the error Error using getimage Too many output arguments.

Error in imroi/getPixelPosition (line 60) [xdata,ydata,a] = getimage(h_im);

Error in imroi/createMask (line 259) [roix,roiy,m,n] = obj.getPixelPosition(h_im);

Error in testmask (line 9) BW = createMask(h);

when I use which -all getimage I got this C:\MATLAB\R2012b\toolbox\images\imuitools\getimage.m % Shadowed

what should I do please?

[Sean de Wolski]

So that is exactly it: getimage is shadowed.

What is the full output from

which -all getimage

There must be another one (MATLAB file or variable) if that one is being shadowed.

[Amani]

this is the full output from which -all getimage C:\Documents and Settings\am_jamal\My Documents\MATLAB\getimage.m C:\MATLAB\R2012b\toolbox\images\imuitools\getimage.m % Shadowed

[Amani]

how can I rename a built-in function? (getimage)

[Amani]

thank you sooooooooooooooooooooo much , I got it and the probelm is fixed by changing the name of a m-file that created

[Sean de Wolski]

Don't rename the builtin! Rename the one you wrote, i.e:

C:\Documents and Settings\am_jamal\My Documents\MATLAB\getimage.m

MATLAB expects the function getimage to be the one in the toolbox, when it's not you run into the type of error you're having. Rename your getimage.m to something else.

[Azzi Abdelmalek]

Amani, When the answer helps, you have to click on [accept this answer]. Now, I did it at your place