1) extract all the m files and test images into a work directory
2) set matlab path to work directory
2) run by calling the function kernel_driver


	kernel_driver(imgorigfile, imgfile)

		where imgorigfile is string file name of undistorted image
		and imgfile is string file name of distorted image

e.g., 

	>> kernel_driver('grid-original.png', 'grid-distorted3.png')

Kernel_driver function will output figures and write out result images
into work directory.

