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Table 3 Inpainting algorithm

From: An improved method for the removal of ring artifacts in high resolution CT imaging

1. Identify the target region Ω from the ring location of Type 1.

2. Set the iteration index k = 0.

3. Identify the fill front δ Ωk, i.e., contour of the target region Ωk.

4. Compute priorities P(p) for Ψ p ∈ δ Ωk.

5. Find the patch Ψ p with maximum priority, i.e., for p=arg  max p ∈ δ Ω k P ( p )

6. Find the exemplar Ψ q ∈ Φ that minimizes d(Ψ p , Ψ q ).

7. Copy the image data from Ψ q to Ψ p .

8. Update C(p).

9. Increase k by 1 for next iteration.

10. Check whether Φk= ϕ. If yes then exit. Otherwise go back to step 3.