Implement gaussian$\_$filter.m$,$ use hsize $=9,$ sigma $=4,$ and save the image as

gaussian$\_9.$jpg

Please do this in MatLab using the pseudocode below. $$Gaussian Filter$$ needs to be used.

Results can be compared using $$I $=$ imfilter$($img$,$ H$)$;$$

guassian$\_$filter.m

function output $=$ gaussian$\_$filter$($img$,$ hsize, sigma$)$

H $=$ fspecial$(\text{'}$gaussian$\text{'},$ hsize, sigma$)$;

$\%$ YOUR CODE HERE

end

lab$03.$m

$\%\%$ Gaussian filter

hsize $=9$; sigma $=4$;

img$\_$gaussian $=$ gaussian$\_$filter$($img$,$ hsize, sigma$)$;

figure, imshow$($img$\_$gaussian$)$;

imwrite$($img$\_$gaussian, 'gaussian$\_9.$jpg$\text{'})$;