SCOOPER is a program which reduces the number of small regions (polygons) in a classified remotely sensed image thereby making it more closely resemble a map and making it more compatible with, and easier to integrate into, geographic information systems (GIS's). This is sometimes called context filtering.
SCOOPER is much more than an algorithm which just converts isolated pixels; it converts regions.
For each class, the user specifies the desired minimum number of pixels which the individual regions in the class must contain. Differenct minima can be assigned to different classes. For example, if there are 10 classes in the classified image the user specifies 10 minima, one for each class.
The program then: 1) locates all the regions in all classes in the image which are less than the user specified minima for each class, and, 2) converts these small regions, regardless of their shape, into the class of the surrounding region.
The result of these two operations is an image which has fewer regions, is smoother, less noisy, more closely resembles a map, and which, with fewer polygons, is better-suited for GIS's.
The program is simple to run. In addition to specifying the minimum number of pixels for the regions in the classes, the user enters the number of rows and columns in the classified image
The maximum value for the minima is 50 pixels. The regions or polygons are located and converted regardless of their shape.
N rows (scan lines), with M pixels per row, with 1 pixel per byte, and with a maximum of 16 classes. There are no header files, header records or header bytes.
Same as the input format.
Windows 95 or later
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Eidetic Digital Imaging Ltd.Top of this page or Eidetic's home page or EARTHSCOPE™ or TEXALL™ or Geo/SAT 2 or Geo/SAT 1