3 . a. Below is shown a convolution mask, Hi, that is a numerical approxi- mation to a 2D Gaussian function, with standard deviation 0.5 pixels. H 0.01 0.09 0.01 0.09 0.64 0.09 0.01 0.09 0.01 Calculate, for the central pixel only, the output that would be generated by convolving H with the greyscale image, 1: 0.1 0.5 1 I 0 0.1 0.3 0.4 0.6 0.2 [3 marks)