Lap_sharp- sharp the image

Calling Sequence:

	img = Lap_sharp(im)
	
Parmeters:

	im: matrix of an input image
	  
	img: output image matrix

Description:
	
	Lap_sharp The function Lap_sharp calculates the convolution of the input image "im" 
	with the Laplacian kernel of a specified size apertureSize and stores the result in "img".  

Example:
	im = imread("lena.png");
	img = Lap_sharp(im);