An Improved BPDF Filter for High Density Salt and Pepper Denoising
Dang N. H. Thanh, Le Thi Thanh, V. B. Surya Prasath, Uğur Erkan · 2019
The BPDF (based on pixel density filter) is an effective filter to remove the salt-and-pepper noise, but it only can work on low and medium noise levels. In this paper we propose an improved version of the BPDF to remove the high-density salt-and-pepper noise. Our proposed method can work effectively on high and very high noise levels (above 90%). In the experiment, we compare the denoising result of the proposed method with the denoising results by BPDF filter and DAMF filter to prove effectiveness of the proposed method. The denoising quality is assessed by the peak signal-to-noise ratio and the structure similarity metrics.