IMAGE STEERING / CHANGE AND PRESERVATION
Change this.
Keep the rest.
Brighten the selected region. Measure what happened outside it. Lumen tests two image controls, predicts their combined effect, and checks the actual pixels before keeping a change.
64 × 64 procedural image. Imported photos are processed locally at 128 × 128.
The dotted boundary marks the selected region. The map shows measured absolute change from the original. Small probe edits and rejected changes are visible before their undo.
FROZEN BEFORE EVALUATION
Can an edit satisfy both requirements?
Twelve image seeds × five control conditions × four policies. The first two physical probe edits each have a charged undo. The action limit is 64; every proposal records predicted errors before measuring the actual result.