10-11-2018, 05:48 AM
1) Duplicate the Original layer. Rename this duplicated layer to Threshold.
2) On the Threshold layer, apply Threshold, value 220
3) On the Threshold layer use the Fuzzy select tool to select the railroad tracks. Make the Threshold layer invisible.
4) Create a new transparent layer and name it Railroad.
5) On the Railroad layer bucket fill the selection with black.
See attached xcf
2) On the Threshold layer, apply Threshold, value 220
3) On the Threshold layer use the Fuzzy select tool to select the railroad tracks. Make the Threshold layer invisible.
4) Create a new transparent layer and name it Railroad.
5) On the Railroad layer bucket fill the selection with black.
See attached xcf