Posted by Rasband, Wayne (NIH/NIMH) [E] on Sep 24, 2010; 4:56pm URL: http://imagej.273.s1.nabble.com/Macro-Can-t-get-data-from-Results-table-tp3686805p3686807.html
that fixes this bug. You can upgrade by dragging and dropping Color_Histogram.jar onto the "ImageJ" window and saving it in the plugins/Analyze folder. You can also get statistics from RGB images by using the MeasureRGB macro at