The archives here on Ssipan, CNMI contain a set of photographs from a 1945 US Navy or Army aerial survey of the entire island of Saipan.
My task is to combine them into a single photographic image file.
The photos are b&w and approximately 10" x 10".
The facility where the photographs are archived has a 600 dpi scanner.
I have access to the photographs only and not the original negatives.
Do you have any suggestions on the best way for me to proceed?
Thanks.
john
You have to Georeference them first. Read the whole help topic. From there you can proceed to mosaic or mosaic data set
Thanks. Regarding the coordinates for georeferencing - I could get the coordinates from a recognizable object on Google Earth and/or go to that same object on the ground and take its coordinates with a gps. Is either of those methods preferable?
Google Earth would probably suffice. Ensure that you are recording the coordinates in decimal degrees...one of the options for coordinates
OK. Decimal degrees is what I usually use. Thanks again.
OK. Decimal degrees is what I usually use. Thanks again.
TIFF/uncompressed seems to be a preferred file type. Should I use TIFF/uncompressed?
I don't find a recommendation for scanning dpi. The scanner that's available is capable of 600 dpi. What do you think?
More than adequate...You just need to get it into Arcmap...
I don't want to record and store more data than I have to. Would less than 600 dpi be OK?
You may have to experiment with the desired resolution...scanning is cheap