AirPhoto is not a photogrammetric plotting program, but it is an orthophoto program working from a digital terrain model (DTM) if desired, although the DTM is not required. A DTM may be imported or the program can create one from a collection of manually entered or imported irregular heights. It is designed to give a very fast result with a minimum of handwork apart from the entry of corresponding control points in a picture and a map just by clicking the mouse. Color or black and white images of various formats may be used or obtained directly from a scanner. Any number of maps may be combined to obtain a result for pictures which show data contained within more than one map. Mosaics may be made from multiple color or black and white images. The map may be overlaid in black or white with the image(s) or combined with them to give visibility.
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