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论文类型：会议论文

发表时间：2021-03-05

卷号：11935

页面范围：114-127

关键字：Image filter; Guided filter; Bilateral filter

摘要：Guided filter behaves as a structure-transferring filter which takes advantage of the guidance image. Nevertheless, it is likely to suffer from structure information loss problem and artifacts would be introduced in practical tasks, e.g., detail enhancement. We in this paper propose to deal with the structure loss problem. We modify the original objective function and develop a re-weighted algorithm to proceed the filtering process iteratively. The proposed filter inherits good properties of guided filter and is more capable in avoiding structure information loss. Many vision tasks can be benefited from the proposed filter. Few applications we outline include flash/no-flash image restoration, image dehazing, detail enhancement, HDR compression, and image matting. Experimental comparisons with relative methods for these tasks demonstrate the effectiveness of the proposed filter.