Area GIMP plug-in
2001, Miroslav Spousta, <email@example.com>
Area is a GIMP plug-in and it was created
in order to easily count area of objects on geographic maps.
The procedure is simple:
- First, you have to create an electronic version of the map, GIMP could be
used for scanning
- Next, you have to select the object which you want to know the area of. This
is as simple as filling the object with selected colour.
- And you are done! Now launch the Area plug-in (Image section), fill in
DPI of an image and the scale and you will immediately see the area in square meters
2. Download and Instalation
Area plug-in is available for Linux only. You can download Area for
GIMP 1.0, 1.2 or
2.2+ (patch provided by Hannes Rotzinger).
Instalation is quite simple:
$ tar -xzvf area-gimp-2.2.tar.gz
$ gimptool --install area.c
3. Example Usage
We will count the area of the yellow filled part of the image:
After loading an image, you can select Area item in the Image menu. Enter DPI and
map scale in the dialog and see the result.
In case of a very large image, it is more efficient to select the area where the object
lies. In this case only pixels in this selected area are counted.