Abstract: In order to resolve the challenging problem of repairing structure in image completion, we introduce a novel image completion approach based on automatic salient structure propagation. Our approach automatically finds the salient structural information around the unknown regions, and extends them into unknown regions to construct assistant curves. After synthesizing the missing structural information along the assistant curves, we fill in the remaining unknown regions using patch-based texture synthesis. Experiment results demonstrate a better effect of the proposed approach than that of the previous patch-based texture synthesis image completion method.