This is also known as "liquid rescale" and there is (was?) a gimpl plugin for it...

petschge on June 26, 2019 | parent | context | favorite | on: Real-world dynamic programming: seam carving

This is also known as "liquid rescale" and there is (was?) a gimpl plugin for it. It last updated in 2013 or so. After that the developer was hired by Adobe to work on Photoshop.

BeetleB on June 27, 2019 [–]

Yes, Gimp had it as a plugin first - before Photoshop.