PDF version of this document

Measuring Inter-image Distances

The simplest method for comparing disagreement among two images is to take their per-pixel difference (Euclidean). However, this can be sensitive to small misalignments. In our experiments we have defined image distance as the shuffle distance between two images, as illustrated below.

3#3 = 15#15 The computation of the shuffle distance

Shown below are the effects of the shuffle transform:

3#3 = 16#16
3#3 = 17#17 Top: The effect of increasing the shuffle radius. Bottom: The effect of increasing the shuffle radius

2#2