Process the image given on the right by a 3x3 Laplacian filter (4-direction mask). Find the filter responses only when the center of the mask is within the shaded region to avoid the border effect...

Process the image given on the right by a 3x3 Laplacian filter (4-direction

mask). Find the filter responses only when the center of the mask is within the

shaded region to avoid the border effect (i.e. filtered image will have a size of

3x4 pixels). Why are the left and right parts of the filtered image so different?Suggest a procedure which maps the filtered image pixel values (including negative values) to integers in the

range of

[0, 255]
to display the image on a monitor screen.