The operator smallest_rectangle1 calculates the surrounding rectangle of all input regions (parallel to the coordinate axes). The surrounding rectangle is described by the coordinates of the corner pixels (Row1,Column1,Row2,Column2)
If more than one region is passed in Regions, the results are stored in tuples, the index of a value in the tuple corresponding to the index of a region in the input. In case of empty region all parameters have the value 0 if no other behavior was set (see set_system). |