AI RESEARCH
Region-Constrained Group Relative Policy Optimization for Flow-Based Image Editing
arXiv CS.CV
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ArXi:2604.09386v1 Announce Type: new Instruction-guided image editing requires balancing target modification with non-target preservation. Recently, flow-based models have emerged as a strong and increasingly adopted backbone for instruction-guided image editing, thanks to their high fidelity and efficient deterministic ODE sampling. Building on this foundation, GRPO-based reward-driven post-