Von: "dorai iyer"

is there any plugin that allows calibration/scaling of the image pixels to microns or nanaometers.

Try the unit editor. http://docs.gimp.org/en/gimp-xtns-unit-editor.html

HTH, Michael

On Tue, Dec 12, 2006 at 03:48:13PM +0100, Michael Schumacher wrote:

Von: "dorai iyer"

is there any plugin that allows calibration/scaling of the image pixels to microns or nanaometers.

Try the unit editor. http://docs.gimp.org/en/gimp-xtns-unit-editor.html

There appears to be a limitation on the unit editor that prevents it from being used for nanometers. If you type in the scale factor 25400000, (which is appropriate for nm), the editor chops it down to 2^16.

Jeff

Hi,

On Tue, 2006-12-12 at 06:11 -0700, dorai iyer wrote:

I just joined the list. My interest in gimp is as a scanning electron microscope user. is there any plugin that allows calibration/scaling of the image pixels to microns or nanaometers. the information i found referred only to pixels/inches.

You probably want to use Gwyddion instead of GIMP. Otherwise, I suggest that you work on a fixed scale of 1:1,000,000. That's what I usually do when working with AFM pictures in GIMP. Just use millimeters as if said nanometers.

Sven