Error with using createMask

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Amani
Amani 2013-5-23
编辑： Azzi Abdelmalek 2013-11-10
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

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Sean de Wolski
Sean de Wolski 2013-5-23
编辑：Sean de Wolski 2013-5-23
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
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Sean de Wolski
Sean de Wolski 2013-5-23
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
Azzi Abdelmalek 2013-11-10
编辑：Azzi Abdelmalek 2013-11-10
Amani, When the answer helps, you have to click on [accept this answer]. Now, I did it at your place

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