1. Digital Image Processing Project # 3 Dr.Nathir Rawashdeh Name : Majd Ali Khaleel ID # :2008102003 19.Dec.2010

2. *I have used MATLAB to implement Highboost filtering. 1)my code : In my code I have used the averaging filter to producean blurry image ,after that I haveused laplacian filter on the blurry image with factor k=3, therefore the image became sharper than the original image . 3. 2) fig(2.1) fig(2.2) * I have loaded an image ,then I have applied the averaging filter on it(=blurry image) ,after that I applied my code on blurry image . We can note the result in figure(2.2). 4. 3) here I have used a different values of factor ( k ) (k=5)(k=1) (k=9) (k=18) ----------------------------------------------------------------------- 4) The best value of k is 1.5 . 5. When k is larger than 1.5 the contribution of the sharpening process becomes less and less important & if the k is large enough, the high boost image will be approximately equal to the original image multiplied by a constant & the image will be lighter and lighter (more sharpening)