Fig. 10From: Block-iterative Richardson-Lucy methods for image deblurringBackprojected images \({\mathcal T}_{i}^{\ast }\textbf {I}_{\Lambda _{i}}\) of a 4×4 and b 8×8 rectangularly-down-sampled Λ i . Here, \({\mathcal T}_{i}\) is the blurring transform associated with the Gaussian PSF k G and Λ i Back to article page