Biomedical Engineering Reference
In-Depth Information
(c)
(d)
Figure 4.2:
(
Cont
.)
scene itself, the pixel values for the same point at registration would not be
identical. It is safe to expect that the majority of them will follow some simple
and most likely linear relation. When the images are not registered, it is difficult
to justify the existence of a simple structure in the joint histogram.
For two images of different modality, one would expect the pixel values
at registration to still be related since they are the images of the same scene.
