@article{Lu2013,
abstract = {In general, subpixel-based downsampling can achieve higher apparent resolution of the down-sampled images on LCD or OLED displays than pixel-based downsampling. With the frequency domain analysis of subpixel-based downsampling, we discover special characteristics of the luma-chroma color transform choice for monochrome images. With these, we model the anti-aliasing filter design for subpixel-based monochrome image downsampling as a human visual system-based optimization problem with a two-term cost function and obtain a closed-form solution. One cost term measures the luminance distortion and the other term measures the chrominance aliasing in our chosen luma-chroma space. Simulation results suggest that the proposed method can achieve sharper down-sampled gray/font images compared with conventional pixel and subpixel-based methods, without noticeable color fringing artifacts. {\textcopyright} 1992-2012 IEEE.},
author = {Fang, Lu and Au, Oscar C. and Cheung, Ngai-Man and Katsaggelos, Aggelos K. and Li, Houqiang and Zou, Feng},
doi = {10.1109/TIP.2013.2262288},
issn = {1057-7149},
journal = {IEEE Transactions on Image Processing},
keywords = {Subpixel rendering,down-sampling,human visual system,improve resolution},
month = {oct},
number = {10},
pages = {3818--3829},
title = {{Luma-Chroma Space Filter Design for Subpixel-Based Monochrome Image Downsampling}},
url = {http://ieeexplore.ieee.org/document/6514934/},
volume = {22},
year = {2013}
}

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