MATLAB: Counting overlapping pixels between two images

counting pixelsImage Processing Toolboxintersectoverlapping pixels

I'm looking to find the number of overlapping shaded pixels between two images. The two images are attached. How could I count the overlapping shaded red pixels between the two images? Any assistance would be much appreciated. If possible an easily repeatable process, as I have to run it with 64 images.

Best Answer

Call imregister to align them. Then use min() to take the min values of the two images.
By the way, I'll be soon leaving for canoe camping over the weekend so good luck. I'll be back Sunday afternoon.