Error diffusion with blue-noise properties for midtones

Pierre-Marc Jodoin; Victor Ostromoukhov

doi:10.1117/12.452999

28 December 2001 Error diffusion with blue-noise properties for midtones

Pierre-Marc Jodoin, Victor Ostromoukhov

Proceedings Volume 4663, Color Imaging: Device-Independent Color, Color Hardcopy, and Applications VII; (2001) https://doi.org/10.1117/12.452999
Event: Electronic Imaging, 2002, San Jose, California, United States

Abstract

In this contribution, a new error-diffusion algorithm is presented, which is specially suited for intensity levels close to 0.5. The algorithm is based on the variable-coefficient approach presented at SIGGRAPH 2001. The main difference with respect to the latter consists of the objective function that is used in the optimization process. We consider visual artifacts to be anomalies (holes or extra black pixels) in an almost regular structure such as a chessboard. Our goal is to achieve blue-noise spectral characteristics in the distribution of such anomalies. Special attention is paid to the shape of the anomalies, in order to avoid very common artifacts. The algorithm produces fairly good results for visualization on displays where the dot gain of individual pixels is not large.

Citation Download Citation

Pierre-Marc Jodoin and Victor Ostromoukhov "Error diffusion with blue-noise properties for midtones", Proc. SPIE 4663, Color Imaging: Device-Independent Color, Color Hardcopy, and Applications VII, (28 December 2001); https://doi.org/10.1117/12.452999

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