On Wed, Aug 31, 2016 at 01:10:22AM +0200, Manuel Aceña wrote:
> To developers of GIMP:
> *Process or batch editing - Barrel distortion*
> I detected something that I think could help significantly large number of
> users:
> Almost all do photos to documents with the mobile phone, and we also
> thought of using a camera installed permanently for it, being much faster
> than the scanner table. But we found that the pictures are distorted,
> generally convex, whether we do with a smartphone or a traditional camera.
> Many smartphone apps include automatic document edge detection, but have
> not found any way to correct lens distortion (barrel distortion). This is a
> very serious problem when we take pictures of planes, which are
> invalidated, or when we want to take pictures of any image that must remain
> correctly proportioned.
> GIMP itself that corrects barrel distortion quickly and easily using a
> filter, but only when a single image editing. Unfortunately, you can not do
> that function working in batches, when I think that developers would be
> simpler than the batch also included that role, assigning a group of photos
> -made with a fixed camera one correction (Example: "Barrel distortion -
> Main: - 22 ")
> *I request that you make every effort to include this feature among
> supported in batch editing.*
> *Thank you* for providing such an *excellent program!!!*

See also if the "unpaper" program (found under all main linux distros)
could be useful for your work...


Marco Ciampa

I know a joke about UDP, but you might not get it.


 GNU/Linux User #78271
 FSFE fellow #364


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