References

[1] R. L. Adler, B. P. Kitchens, M. Martens, C. P. Tresser, and C. W. Wu, "The Mathematics of Halftoning," IBM Journal of Research and Development, 47(1), 2003 pp. 5-15 www.research.ibm.com/journal/rd/471/adler.pdf.

[2] R. Floyd and L. Steinberg, "An Adaptive Algorithm for Spatial Grey Scale," SID International Symposium Digest of Technical Papers, San Jose, CA: The Society for Information Display (SID), 1975 pp. 36-37.