This plugin merges the segmented image and writes down the results into the new file:map_28_merged, map_28_imp_merged or map_28_abst_merged. Each of them is according to mode=0, mode=1, mode=2.
* If parameter-2 is raised or parameter-3 is decreased, the small parts are left without merging. If you use 5GKSubstColor after this plugin, you can see the results soon.

p1[1 map set](mode): indicates the type of map set.
[1 map set]=0 map_28(strongly recommended) -> using map and map_28, it creates map_28_merged, unifymap_28_merged and mapinfo.
[1 map set]=1 map_28_imp -> using map and map_28_imp, it creates map_28_merged_imp, unifymap_28_merged_imp and mapinfoimp.
[1 map set]=2 map_28_abs -> using map and map_28_abst, it creates map_28_merged_abst, unifymap_28_merged_abst and mapinfo_abst.

p2[2 Threshold](thresh): threshold that if a deference of colors between the segment and a merged big one smaller than this threshold, that segment is merged into a merged big one.
[2 Threshold]=integer -> when this value increase, the small parts are left without merging.

p3[3 Number of Segments](segment number to check): the segments number regarded as adjacent one
[3 Number of Segments]=integer ->When this value increase, segments becomes easy to merge.

p4[4 Edge Threshold](black_edge): the threshold to classify segments into a edge and an area. This plugin dose not merge a segment regarded edge.
[4 Edge Threshold]=integer -> When this value is raised, segments are not easy to be merged