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2009 IEEE Conference on Computer Vision and Pattern Recognition
Image deblurring and denoising using color priors
Miami, FL, USA
June 20-June 25
ISBN: 978-1-4244-3992-8
N. Joshi, Microsoft Res., Redmond, WA, USA
C.L. Zitnick, Microsoft Res., Redmond, WA, USA
R. Szeliski, Microsoft Res., Redmond, WA, USA
Image blur and noise are difficult to avoid in many situations and can often ruin a photograph. We present a novel image deconvolution algorithm that deblurs and denoises an image given a known shift-invariant blur kernel. Our algorithm uses local color statistics derived from the image as a constraint in a unified framework that can be used for deblurring, denoising, and upsampling. A pixel's color is required to be a linear combination of the two most prevalent colors within a neighborhood of the pixel. This two-color prior has two major benefits: it is tuned to the content of the particular image and it serves to decouple edge sharpness from edge strength. Our unified algorithm for deblurring and denoising out-performs previous methods that are specialized for these individual applications. We demonstrate this with both qualitative results and extensive quantitative comparisons that show that we can out-perform previous methods by approximately 1 to 3 DB.
Index Terms:
color prior, image deblurring, image denoising, image deconvolution, shift-invariant blur kernel, color statistics, edge sharpness
Citation:
N. Joshi, C.L. Zitnick, R. Szeliski, D.J. Kriegman, "Image deblurring and denoising using color priors," cvpr, pp.1550-1557, 2009 IEEE Conference on Computer Vision and Pattern Recognition, 2009
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