The photographic image measurement enjoys in contrast to a line drawing an extremely high information density and attention to detail. Measuring images of flat objects such as building facades, walls, ceilings, etc. after equalization are suitable as scale basis for the determination of length, squares, etc. For this reason there were often given test images in order, for example, be in vacant lots or closures for damage assessment. ______________________________________________________________________________________ Home > Competitive Services > Architecture-Photogrammetry > References > Digital Rectification