LabCarven: Resize an image by what matters

Carven is a content-aware image resizer that implements seam carving from scratch. It builds a gradient-energy map, runs a minimum-seam dynamic program to find the least-important path of pixels, and removes it - all as pure number-grid math kept separate from rendering and tested directly. It shows content-aware and naive scaling side by side, and it is a from-scratch, dependency-light build you can download and run locally.