Image Blur In Matlab. Help with image manipulation blur. The function is to be called like this.

The system keeps telling me that my values are incorrect but i am struggling to understand why. Blurring is to be carried out by averaging the pixel values in the vicinity of every pixel. You can download the test image here to use in matlab.
Now that we have the image and blur kernel we can blur the image.
The system keeps telling me that my values are incorrect but i am struggling to understand why. This matlab function filters image a with a 2 d gaussian smoothing kernel with standard deviation of 0 5 and returns the filtered image in b. This function uses integral images for filtering an image with box filters. Blurring is to be carried out by averaging the pixel values in the vicinity of every pixel.