Perform some tests on noise filtering using the technique of image averaging on the images . But for 4,8 and then with 16 images

i did this but it doesnt running. I want to make an average image using 4,8 and then 16 images .their name is noisy1, noisy2 exc. ..noisy16 thats why im using the m in the imread command .

for m = 1:4

Image = imread('noisy.bmp',m);

Javerage = filter2(fspecial('average',3),J)/255;

figure

imshow(Javerage)

end

for m = 1:8

Image = imread('noisy%d.bmp',m);

Javerage = filter2(fspecial('average',3),J)/255;

figure

imshow(Javerage)

end

for m = 1:16

Image = imread('noisy%d.bmp',m);

Javerage = filter2(fspecial('average',3),J)/255;

figure

imshow(Javerage)

end