Figure 7From: Poisson noise removal from high-resolution STEM images based on periodic block matching Median and Wiener filter applied to noisy images. Gallium nitride image (cf. Figure 3B) denoised with (A) median filter and (B) low-pass Wiener filter, and silicon image (cf. Figure 3D) denoised with (C) median filter and (D) low-pass Wiener filter.Back to article page