Halftoning

Halftoning is required to print greyscale images on printing device which support only two greylevels. A pseudo - random
dithering matrix of the size (i.e. order of the matrix) specified by the user is used here. The reduction in the
resolution of the image is clearly visible.


`Original Image`	`Halftoned image` `using a 3x3 dither matrix`	`Halftoned Image` `using a 5x5 dither matirx`	`Halftoned Image` `using a 7x7 dither matrix`

Page last updated on 28 January, 2004.	`AT cse.iitd.ac.in`	© Parag Chaudhuri , 2009