FIGURE 8. Blur introduced by backprojection. (A) Projection data are given. (B) Backprojection allows one to find values for 9 pixels. (C) Original image, whose projections are given in A, is shown. To compare original image and reconstructed image, image in B has been arbitrarily normalized to same maximum as original image: (D) Result is presented. Note how absolute difference between any 2 pixels is lower in D than in C.

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