Method scaleImage

ij/src/main/java/ij/plugin/RoiScaler.java:155–169

(ImageRoi roi, double xscale, double yscale, boolean centered)

	}
	
	private static Roi scaleImage(ImageRoi roi, double xscale, double yscale, boolean centered) {
		roi = (ImageRoi)roi.clone();
		ImageProcessor ip2 = roi.getProcessor();
		//ip2.setInterpolationMethod(interpolationMethod);
		int newWidth = (int)Math.round(ip2.getWidth()*xscale);
		int newHeight = (int)Math.round(ip2.getHeight()*yscale);
		ip2 = ip2.resize(newWidth, newHeight, true);
		roi.setProcessor(ip2);
		Rectangle bounds = roi.getBounds();
		int x = (int)Math.round(bounds.x*xscale);
		int y = (int)Math.round(bounds.y*yscale);
		roi.setLocation(x,y);
		roi.copyAttributes(roi);
		return roi;
	}

}