Øyvind Kolås <pip...@gimp.org> wrote:
> On Mon, Feb 4, 2013 at 4:11 PM, Elmer Wix
> <elmer.cabekaziruronometu....@gmail.com> wrote:
>> I often use my digital camera to take pictures of flat, rectangular
>> objects, like framed paintings on a wall, book or album covers, or
>> pages of documents.  Of course, I can't take these pictures straight
>> on and perfectly level, but that's OK.  I know what the dimensions of
>> the objects are, so I can just correct the perspective in software.
>> Does Gimp have any function like this?  I found the perspective tool,
>> but that requires me to manually shift the perspective and eyeball
>> when I think a rectangular image is produced.  That's not nearly as
>> convenient.
> The perspective tool has an inverse mode, if you align the grid lines
> from the wireframe preview with the lines desired to become
> horizontal/vertical and then do the transform you should end up with a
> rectified version of the quadliteral.

Thanks!  That worked.  The size and aspect ratio of the rectified
quadrilateral isn't always close to what I want it to be, though.  Is
there a way to specify this before I do the perspective transform, or
do I just need to do it in 2 steps (correct perspective, and then
gimp-user-list mailing list

Reply via email to