No pop-up when using imshow

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William Rowe
William Rowe 2020-6-13
编辑： Image Analyst 2020-6-13
Hi sorry if this question has been asked before. I'm trying to view my images using the imshow command. I've tried a variety of input arguments (ex. adding additional parameters). I've also tried loading directly from a file, loading into a variable, and building my own image using the matrices in MatLab. Whenever I run imshow(image_name) nothing happens. No pop-up window, no error, nothing.
I'm using MatLab Version 9.7 and Image Processing Toolbox Version 11.0. I'm also on Windows.
Thanks in advance!
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Image Analyst
Image Analyst 2020-6-13
Does this work?
clear all
close all
grayImage = imread('moon.tif');
imshow(grayImage);
William Rowe
William Rowe 2020-6-13
Yes, that fixed it! @Image Analyst
Any idea what I was doing wrong? I don't think I shadowed the function, but not sure.

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Image Analyst
Image Analyst 2020-6-13
编辑：Image Analyst 2020-6-13
William:
You probably had defined image or imshow and forgotten about it. Perhaps a variable, perhaps an m-file name, perhaps a function - who knows. Calling
clear all
fixed it by "undefining" the definition you made. Glad I could help.
(And to all those other people who always yell at me
that there is never any reason to call clear all,
here's proof that it's sometimes useful.)

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