Direction operator-based switching filters for removing the impulse noise from the corrupted image

作者：Wu, Chang Cheng^*; Qiu, Hong Tong; He, Guang Jin

来源：Optical Engineering, 2011, 50(12): 127003.

DOI：10.1117/1.3659697

• impulse noise
• median
• switching
• direction operator

A novel switching-based filter is proposed in this work to remove the impulse noise from the corrupted image. First, samples in 5x5 filter window are fully considered to detect whether the center is corrupted by impulse noise or not. Then, the detected noise free samples in the 5x5 filter window, aligned in the main direction, are weighted more heavily than those that are not on the main direction when using the median operation to suppress the impulse noise. At last, simulation results demonstrated that this algorithm outperforms many other methods in terms of both quantitative and qualitative aspects.

• 出版日期2011-12
• 单位公安部交通管理科学研究所