In our previous paper presented in the last year, we mostly focused on the color saturation problem in our inkjet printer. However, our partner reported that there are some boundary noise pixels on the background, which are quite visible when the background is white. By checking the pipeline of our printing procedure, we realized that the noise stray dots are generated during the halftoning procedure. This paper is dedicated to separate the white background from the foreground, which enables us to constrain the error diffusion process inside the white background. The main idea is to apply image segmentation, which could help us to precisely extract the background.
Sige Hu, George T.C. Chiu, Davi He, White He, Rain Guo, Jan P. Allebach, "Improving an inkjet printer: Removing stray-dots by constraining error diffusion in highlight regions" in Electronic Imaging, 2022, pp 279-1 - 279-6, https://doi.org/10.2352/EI.2022.34.15.COLOR-279