Undefined function 'meann2' for input arguments of type 'uint8

rgbImage = getsnapshot(videoObject);

imwrite(rgbImage, fullFileName);

grayImage = rgb2gray(rgbImage);

meanGL = meann2(grayImage);

if meanGL < 20 % or whatever.

warningMessage = sprintf('Something is wrong.\nThe image is too dark.\nThe mean intensity is

only %.1f gray levels', meanGL);

uiwait(warndlg(warningMessage));

end ---------------------------------------------------------------------------- my error is

Undefined function 'meann2' for input arguments of type 'uint8

Error in InProcessing (line 21)

meanGL = meann2(grayImage);

Answer 1

[the cyclist]

You didn't actually ask a question, but I'm going to guess.

It looks like you might have a simple typo. Did you want to use the function mean2() rather than meann2()?