Maximum Recursion limit when using rgb2gray

When I try to use the function rgb2gray, I get the following error message:

Maximum recursion limit of 500 reached. Use set(0,'RecursionLimit',N) to change the limit. Be aware that exceeding your available stack space can crash MATLAB and/or your computer.

What is causing this error??

My code is:

>> I=imread('\\psf\Home\Desktop\Coin project\dbImages2\fotos 21 sep 5R\Sample_2015-08-12 15.39.08.221.jpg');
>> I2=rgb2gray(I);
Maximum recursion limit of 500 reached. Use set(0,'RecursionLimit',N) to change the limit. Be aware that
exceeding your available stack space can crash MATLAB and/or your computer.

Error in rgb2gray

This happens only when I use the rgb2gray function

Thanks for your help

Answer 1

[Walter Roberson]

Please use

which -all rgb2gray

to find out where the files are. Chances are that you have accidentally added your own rgb2gray.m that is intended to call the "real" rgb2gray but instead calls itself.

[Carlos Gomez]

thank you. That is exactly what happened