Mathematical Problems in Engineering / 2018 / Article / Fig 3

Research Article

Image Denoising Algorithm Combined with SGK Dictionary Learning and Principal Component Analysis Noise Estimation

Figure 3

Using five kinds of dictionary learning algorithm for image denoising.
(a) Original Barbara image
(b) SGK denoised image
(c) DCT denoised image
(d) Global denoised image
(e) K-SVD denoised image
(f) BM3D denoised image