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Mosaics are quick and relatively inexpensive to produce and have been used for various purposes by project managers to present information at various stages of their project life.
Digital mosaics have basically replaced the traditional hard copy process of joining together photographs. Even for the production of mosaics from historical hard copy records, the flexibility and ease of scanning images into a digital format, generally out weighs any quality compromises using negatives to produce images.
...overlapped and combined...
The disadvantages of mosaics are
A standard for digital images has been created for Main Road products. Mosaics can be requested from consultants by using a standard mosaic fax and the "67-08-12 Digital Rectified Image Standard".
A small number of digital mosaics are available to Main Roads project managers through the photographic library within Main Roads. Indexes to this library can be sourced through the Senior Mapping Surveyor.
A copy of all data produced for the mosaic is to be supplied on CD to the Senior Mapping Surveyor for archival purposes. This enables the image library to be maintained and allows images to be used in future by other Main Roads project managers.
The Senior Mapping Surveyor can provide advice on techniques and bench mark prices.