The new Threshold_Colour plugin version 1.7 has a new [Macro] button that
generates a macro and sends it to the Recorder window (if active) based on
the current plugin settings. The zip file also includes RGB2YUV and RGB2Lab
plugins which are necessary for that macro (note that these plugins convert
an RGB image to YUV and CIE Lab colour spaces but with values mapped into an
8-bit space).
The new macro function needs IJ 1.37e
http://www.dentistry.bham.ac.uk/landinig/software/software.htmlCheers,
Gabriel