How can I use imregister with separate image and position data. IM [640 x 512]; Lat [640 x 512]; Lon [640 x 512]

Hi Everyone- I have some aerial imagery that has been georeferenced using IMU and GPS data (Lat, Lon, altitude, pitch, roll, and heading). I am not concerned with the absolute differences between my aerial imagery and a reference image, but I want to examine relative differences between my images and I thought of using imregister. Ultimately I would like to derive some assessment of the accuracy of my location and orientation data.

My image data are stored as 2D arrays - 640 x 512 and the location of each pixel is stored in two arrays of the same size, e.g., Lat has dimensions 640 x 512 and Lon has dimensions 640 x 512.

I have attached an example .mat file with the following contents:

IMAGE 1

Im1 Example Image data

lon1 Longitudes for each pixel in Im1

lat1 Latitudes for each pixel in Im1

IMAGE 2

Im2 Example Image data

lon2 Longitudes for each pixel in Im2

lat2 Latitudes for each pixel in Im2

Do I first need to save my images as geotiffs, or can I skip this step somehow?

[Lars Chresten Lund-Hansen]

Forgot the attachment....