Input images for stereo camera calibration app

Hi!

I am trying to calibrate two different cameras using the stereo calibration app. When I load the images for camera1 and camera2, the app displays an error that all the images should have the same size.

1. Why? What is the reasoning behind this limitation
2. How can I still calibrate two different cameras (that might output images of different size)?

[James Wiken]

Here is a link to a similar post in Stack Overflow:

http://stackoverflow.com/questions/25674029/stereo-calibration-of-two-images-with-cameras-of-different-resolution-in-matlab