Fig. 5: The variation of central moments during the process of isotropic blurring of the images.
From: Fast autofocusing based on single-pixel moment detection
Relationship between central moments (M1, M2, and M1 + M2) and variance (σ) of the 2D Gaussian point spread function for img1 (a), img2 (b), img3 (c), and img4 (d).
