different results using ImageStatistics and Menu-Analyze-Measure command

Posted by Ben Liu-3 on Apr 27, 2006; 8:19pm
URL: http://imagej.273.s1.nabble.com/different-results-using-ImageStatistics-and-Menu-Analyze-Measure-command-tp3702965.html

Hi there,
I wanna measure the mean of line with width of w pixels.
the line is from point ps to pe.
the plugin is like this:
        Line line = new Line(ps.x, ps.y, pe.x, pe.y);
        line.setWidth(w);
        imp.setRoi(line);
        is = ImageStatistics.getStatistics(ip, Measurements.MEAN+Measurements.AREA, imp.getCalibration());
        return is.mean;

The result from this plugin is different from the one got from Menu->Analyze->Measure command.

Does anyone know why is this?


               
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