Vol. 9 No 6 December 2001
PAN-PAN Change Detection
PAN-to-PAN change detection software works on band differencing, band ratioing, and memory write detection algorithms. It inputs multi-temporal images in multiple of 1024 pixels which can go up to 4096 x 4096 pixels. Facility to set appropriate threshold is provided in the software which allows the operator to remove global changes in the images. A facility to clear change mask is also provided in the image. The output of change can be obtained in the form of RGB binary image. The presence and absence of an object in two imageries can be obtained in two different colours.