[knew,m,n]=contour_b_trial_2(a,row,col)

knew=contour image

m=contour background pixels

n=contour object pixels



ch=contour_code_2(m)

ch=contour code



[k8,m8]=eightneighbour(k,n)

k8=contour image containing eight neighbourhood

m8=contour pixels



[k4,m4]=fourneighbour2(k,n)

k4=contour image containing four neighbourhood

m4=contour pixels



press pause after each plot to continue