The purpose of this research is to study quantitatively edge enhancement effects of different digital halftone algorithms, especially on Error diffusion and Linear Pixel Shuffling algorithms. It has been known that by changing the amount of error and the spread of error when processing original images, different edge enhancement effects are observed. In many cases sometimes an unsymmetrical edge enhancement phenomenon occurs at the junction of different gray levels. A new metric for describing edge enhancement effects is introduced. This metric is shown to be consistent and reliable. In order to describe the unsymmetrical edge enhancement phenomenon in some cases, a new unsymmetrical metric is introduced. Both of these metrics are expected to provide useful quantitative measurements of edge enhancement effects in various different halftone algorithms.

Publication Date


Document Type

Senior Project

Student Type


Degree Name

Imaging Science (BS)

Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)


Not listed.


Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works in February 2014. senior project.


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