Multiframe Astronomical Image Registration Based on Block Homography Estimation

Figure 8

The relationship curve of gap statistics with respect to number of clusters of satellite image: (a) the relationship curve between the gap and the number of clusters; (b) the maximum gap with respect to the number of clusters; (c) the relationship curve of log of square summation of the number of points in one cluster with respect to the number of clusters.

(a)

(b)

(c)