for Inkjet Printing

Michael deLeon

Psych221/EE362 Final Project

Inkjet Printer Development

Basic Halftoning Techniques
Dither Matrices
Floyd Steinberg

Color Halftoning Methods
Color Diffusion (MBVQ)
Multi-Level Halftoning
Model-Based Color Halftoning

Results
Ramps
Trees
Lena
Chart

Conclusions

Matlab Source Files

References

With the recent advances in technology and drops in prices, the home inkjet printer has become an affordable way for almost any consumer to print photo-quality images.  Perhaps due to to the increasing investment in these products, there has been a wave of research into color halftoning methods in the last decade.

This report reviews some of the technolgy and techniques used in color halftoning.  A brief review of inkjet printer development gives an overview of some of the properties most important in halftoning.  A brief review of basic halftoning techniques discusses two of the most common methods: simple dither matrices and error diffusion.  A deeper review of several color specific methods explores some of the interesting recent ideas in color halftoning.  Results from siulations of some of these methods are presented.  This report also includes the matlab code used to simlate these methods and links to the sources that inspired them.