in the meantime I have had really encouraging results taking the source pictures from about 25 meters above ground. Their resolutions being each about 2 MP (1.920 x 1.088) I wonder how to get higher resolution in the target file, actually being at about 2 MP (1436 x 1387) for a series of however 68 pictures (17 rows of 4 pictures each).
I attach a sample of my .jpg-pictures an the resulting .tiff-file.
I would be very greatful for a hint to obtain better resolution.
Have a nice day,
just one permitted