compose_maps

PURPOSE

compose_maps composes (in the mathematical sense) two maps and outputs the result.  So, if one has a map from image A to image B, and another map from image B to image C, the result of compose_maps will be a map from image A to image C.

Alternatively, one can compose the first map with the inverse of the second map by using the -inverse_map2 option.  In that case, if one has a map from image A to image C, and another map from image B to image C, the result of compose_maps will be a map from image A to image B.

TYPICAL USAGE

compose_maps -map1 input1.map -map2 input2.map -output out.map

COMMAND LINE OPTIONS

-inverse_map2 input2.map

requests that the first map be composed with the inverse of the given map; this option should not be used with the -map2 option.

-map1 input1.map

specifies the first map.

-map2 input2.map

requests that the first map be composed with the given map; this option should not be used with the -inverse_map2 option.

-output output.map

specifies the output map to be written.

-threshold float_value

requests that a thresholding operation be performed on the confidence values of the output map.  Normally, the confidence of a map element in the output map is the minimum of the confidence value of the map elements used to compute it.  With this option, the confidence value of an output map element will be 1 if it would have been greater than or equal to the given threshold, or 0 if it would have been less.