Cat Swarm Optimization Based Functional Link Artificial Neural Network Filter for Gaussian Noise Removal from Computed Tomography Images

Figure 2

(a) CT image of the ankle bone, (b) CT image with Gaussian noise, (c) denoised image using CSO-FLANN adaptive filter, (d) denoised image using FLANN-LMS adaptive filter, (e) denoised image using Wiener filter, and (f) filtered image using a mean filter (Image Courtesy: CT-MONO2-16-ankle.dcm, MATLAB R2015a).

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