Gradient Domain Guided Image Filtering

Guided image filter (GIF) is a well-known local filter for its edge-preserving property and low computational complexity. Unfortunately, the GIF may suffer from halo artifacts, because the local linear model used in the GIF cannot represent the image well near some edges. In this paper, a gradient d...

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Bibliographic Details
Published inIEEE transactions on image processing Vol. 24; no. 11; pp. 4528 - 4539
Main Authors Kou, Fei, Chen, Weihai, Wen, Changyun, Li, Zhengguo
Format Journal Article
LanguageEnglish
Published United States IEEE 01.11.2015
Subjects
Computational modeling
Cost function
detail enhancement
Dynamic range
edgepreserving
gradient domain
Guided image filter
high dynamic range
Image edge detection
saliency detection
Signal processing algorithms
Smoothing methods
detail enhancement
gradient domain
edge-preserving
saliency detection
Guided image filter
high dynamic range
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Summary:Guided image filter (GIF) is a well-known local filter for its edge-preserving property and low computational complexity. Unfortunately, the GIF may suffer from halo artifacts, because the local linear model used in the GIF cannot represent the image well near some edges. In this paper, a gradient domain GIF is proposed by incorporating an explicit first-order edge-aware constraint. The edge-aware constraint makes edges be preserved better. To illustrate the efficiency of the proposed filter, the proposed gradient domain GIF is applied for single-image detail enhancement, tone mapping of high dynamic range images and image saliency detection. Both theoretical analysis and experimental results prove that the proposed gradient domain GIF can produce better resultant images, especially near the edges, where halos appear in the original GIF.
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ISSN:1057-7149
1941-0042
DOI:10.1109/TIP.2015.2468183