Pixel area of selection

gasto · **Joined:** Sep 13, 2011 **Posts:** 77

GIMP Version: 2.6.11
Operating System: Windows
OS Version: XP - SP3
GIMP Experience: Beginner Level

Is there some tool or a script that allows to know how many pixels there are inside a selection and around it(the area and perimeter of a selection)?

saulgoode · **Posted:** Tue Sep 27, 2011 4:40 pm **(#2)**

There is "Colors->Info->Histogram" which will instruct about the number of pixels, but bear in mind that the value presented is weighted by the amount of the selection (i.e., selections are not either/or, feathered selections are only partially "selected"). As to the perimeter of a selection, I do not know of a direct method, though a script could probably be written.

RobA · **Joined:** Jul 14, 2010 **Posts:** 697

Isomage has one here - but I have not tried it:

http://axiscity.hexamon.net/users/isoma ... ion-stats/

-Rob A>

gasto · **Joined:** Sep 13, 2011 **Posts:** 77

Thanks Both utilities helped a lot.

ofnuts · **Joined:** Oct 25, 2010 **Posts:** 4812

saulgoode wrote:

There is "Colors->Info->Histogram" which will instruct about the number of pixels, but bear in mind that the value presented is weighted by the amount of the selection (i.e., selections are not either/or, feathered selections are only partially "selected"). As to the perimeter of a selection, I do not know of a direct method, though a script could probably be written.

You can obtain a path from the selection and then ask for the length of the strokes produced. But this can only be indicative, the length of the perimeter of a selection will depend a lot to what accuracy you measure it.