Jeff,
Another stripped down example.
Regards -- Michael Ellis
import java.awt.Color;
import ij.ImagePlus;
import ij.gui.Line;
import ij.gui.OvalRoi;
import ij.gui.Overlay;
import ij.plugin.filter.PlugInFilter;
import ij.process.ImageProcessor;
/**
* @author Michael Ellis
*
*/
public class Show_Colour_Overlay implements PlugInFilter {
ImagePlus imp = null;
public Show_Colour_Overlay() {
}
/**
*
* @see ij.plugin.filter.PlugInFilter#run(ij.process.ImageProcessor)
*/
public void run(ImageProcessor ip) {
Overlay overlay = new Overlay();
final int width = imp.getWidth();
final int height = imp.getHeight();
OvalRoi oval = new OvalRoi((width / 2) - 50 , (height / 2) -50, 100,
100);
oval.setFillColor(Color.yellow);
overlay.add(oval);
oval = new OvalRoi((width / 2) - 30 , (height / 2) -30, 60, 60);
oval.setStrokeColor(Color.blue);
overlay.add(oval);
Line line = new Line(10, 10, width - 10, height - 10);
line.setStrokeColor(Color.red);
overlay.add(line);
line = new Line(width - 10, 10, 10, height - 10);
line.setStrokeColor(Color.black);
overlay.add(line);
imp.setOverlay(overlay);
}
/**
*
* @see ij.plugin.filter.PlugInFilter#setup(java.lang.String,
ij.ImagePlus)
*/
public int setup(String arg, ImagePlus imp) {
this.imp = imp;
return PlugInFilter.DOES_ALL;
}
}
On 19 May 2010, at 18:58, jeff spector wrote:
> Hello list,
> I have a simple question but I can't seem to find the answer
> anywhere. I would like my plugin to draw some colored lines on an
> image (actually some slices in a stack) but my images are 16-bit
> grayscale .tiff´s. I try using ip.setColor but no matter what color
> I set it to I always get some shade of gray or black. My question is
> simple. How (in a plugin) do I draw a color overlay on a grayscale
> image..
> thanks in advance
> -Jeff
Michael Ellis
Managing Director
Digital Scientific UK Ltd.
http://www.digitalscientific.co.uk[hidden email]
tel: +44(0)1223 329993
fax: +44(0)1223 370040
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Cambridge
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