On-line Analytical Tools

Change Detection is utilizing the image overlay techniques to visualize the spatial temproal proecess.

Change Detection analyses by way of differencing and overlay are procedurely simple and analytically powerful means for per-pixel assessment of land cover changes (Chavez and McKinnon, 1994). Multitemproal images can be graphically overlaid by simultaneous display in different color planes of image display device. Statistical overlay is generally performed with categorical image data to identify (rather than merely detect) apparent cover changes as transition sequences.