Skip to main content
. 2014 Jun 16;9(6):e100240. doi: 10.1371/journal.pone.0100240

Figure 1. Illustration of NLM filtering effect on small high-contrast particles.

Figure 1

(a) Synthesized checkerboard image with one-pixel particle details; (b) Gaussian noise-corrupted image; (c) NLM-filtered image; (d) NLM-calculated weights of pixels in the search window as enclosed by the square in (b).