Does ShapeLogic work without ImageJ?
It does for declarative programming. See Project Euler. Starting with version 1.1 ShapeLogic’s image processing algorithms will be decoupled from ImageJ. The idea is not to redo ImageJ’s functionality but to make ShapeLogic more modular. All of ShapeLogic’s current image processing algorithms only use very simple image properties so they should apply outside of ImageJ. Not everything will work outside ImageJ. The letter match example has a first step that is a skeletonize algorithm that comes with ImageJ. In order to get that to work outside you will need to have another implementation of this.