AnswerID: 357335 Submitted: Tuesday, Mar 31, 2009 at 21:40
The Explorer
replied:
Hello
I have all may maps scanned at 200dpi and saved as tiffs. Scans of full maps are pretty big (~75MB) so after you calibrate them it may be wise to convert to OZF or ECW format as you will be able to reduce file size (max ~10MB) plus they load faster.
I don’t see any point in scanning most maps at greater than 200/250 dpi as while the image may be clearer when zoomed in the maps don’t have the accuracy to be examined at that level anyway..so there is no point in zooming in too close (bit like holding a paper map up against your face). Best to keep file size down IMHO.
The ozf conversion program can be found here
img2ozf program here
Keep in mind you have to calibrate the map first as the program looks for the OziExplorer calibration file, not the image file in first instance.
Cheers
Greg
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