Well, what I thought was a trivial task has gotten nowhere. I presumed that I could take the locations of OZIEXPLORER calibration points latitude, longitude, x pixel, y pixel) and just substitute them in the the TOPOFUSION User Map definition and I would be home free.
After fooling around for a day or so, I have not gotten there.
Below is the TOPOFUSION USER MAP Calibration I have defined for Harriman2007A.jpg. Comments are on each line:
UserEnabled0=0 0 or 1 depending on whether the file is enabled or no
UserAlpha0=0 0 to 255 determined by the opacity
UserImagex0p0=2839 X axis coordinate of the first pontl (0 is the leftmost pixel)
UserImagey0p0=398 Y axis coordinate of the first pointl (0 is the most northern pixel)
UserLat0p0=41.324577 Latitude of the pixel
UserLon0p0=-73.987617 Longitude of the pixel
UserImagex0p1=2235 Corresponding data for the next point
UserImagex0p2=311 Corresponding data for the third point
UserFilename0=C:\topofusion\Harriman2007A.jpg Location and name of the image.
The image is 3362 by 1629 pixels.
All data shown was copied from the OZI map file for the image.
The resulting USER map is close to the OZI map but is not really good enough. I can generate a better map using the TOPOFUSION techniques.
Am I missing something? Are my assumptions on that the OZI and TOPOFUSION definitions of the pixel location are the same. Is there a projection difference? The fact that OZI typically uses 3 points makes there calibration better?
If you want, I can send you the same track on the OZIEXPLORER map, on a TOPOFUSION technique map and my attempt so that you can see the differences.