Graphics help - reduce line thickness

[SimpleSi]

I'm uploading a school plan layout to a Unifi controller but the wall lines are a bit thick - what technique can I use (in Gimp or paint.net - dont have photoshop) to thin them down so they don't swamp my network map?

 

Any ideas?

 

Simon

http://dl.dropbox.com/u/1173161/zxw/wall.jpg

[TwoZeroAlpha]

Wow, haven't posted on here in ages, the joy of going fulltime

 

In Gimp,

 

Select the red,

 

Select > Shrink (about 10pixels)

 

Select > Invert

 

Delete key

 

Done

[SimpleSi]

Not bad but if I shrink enough to get the lines to thin, some of them disappear - so have you got anything better?

 

Si

[TwoZeroAlpha]

Import into inkscape and draw straight lines over the top

[SimpleSi]

@sysman

 

You've spoilt the game- you and your fancy vector thinghy

 

:)

Ta

Simon

 

PS But I still want to know a good subsitute for having it re-drawn by a Jedi Master