CODEWITHSUNDEEP
arraysimagematlabcell
user2029767
user2029767

Reputation:

Undefined function 'avg' for input arguments of type 'double'

I keep getting this error when inputting this code. Im trying to eventually convert a color image to greyscale using nested for loops. Heres the error message "Undefined function 'avg' for input arguments of type 'double'"

x = imread('RickMoranis.jpg');
r = size(x, 1);
c = size(x, 2);

 for row = 1:r 
    for col = 1:c 
       y= mean(avg(row,col,:));
    end
end
end

Upvotes: 0

Views: 1231

Answers (2)

Memento Mori
Memento Mori

Reputation: 3402

If you are expecting avg to calculate the average, use mean. It seems you already have the command mean in your code. There is no built-in function avg in matlab.

Upvotes: 0

Jonas
Jonas

Reputation: 74940

There is no built-in function avg.

Most likely, you wanted to write

y= mean(x(row,col,:));

Note that instead of the double loop, you can also write

y = mean(x,3);

Finally, if you have the Image Processing Toolbox, you way want to check out rgb2gray for conversion of RGB to grayscale.

Upvotes: 4

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