Edge-Based Defocus Blur Estimation With Adaptive Scale Selection.
IEEE Transactions on Image Processing(2018)
摘要
Objects that do not lie at the focal distance of a digital camera generate defocused regions in the captured image. This paper presents a new edge-based method for spatially varying defocus blur estimation using a single image based on reblurred gradient magnitudes. The proposed approach initially computes a scale-consistent edge map of the input image and selects a local reblurring scale aiming t...
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关键词
Image edge detection,Estimation,Kernel,Convolution,Lenses,Laplace equations,Computational modeling
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