Results 31 to 40 of about 4,248,427 (280)
Fast algorithm for dark channel prior
A fast algorithm to calculate the dark channel prior (DCP) with the complexity constant for window size and linear for image size is presented. The strategy followed is that of ‘trade space for time’, and a data structure is developed, called the partitioned minimal table (PAMT), to orderly store the local minima of four partitions of every non ...
Renjie Gao, Yi Wang, Min Liu, Xin Fan
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Haze Level Evaluation Using Dark and Bright Channel Prior Information
Haze level evaluation is highly desired in outdoor scene monitoring applications. However, there are relatively few approaches available in this area. In this paper, a novel haze level evaluation strategy for real-world outdoor scenes is presented.
Ying Chu, Fan Chen, Hong Fu, Hengyong Yu
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l2‐norm‐based prior for haze‐removal from single image
Climatic and atmospheric phenomena – such as haze, fog and smoke – may lead to deterioration of quality and poor scenic clarity of outdoor images. In computer graphics, the authors can model these images as a linear combination of scene radiance, medium ...
Deepak Kumar Jha +2 more
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Image Dehazing Algorithm Using Improved Dark Channel Prior and Strategic Fusion [PDF]
To address the problems of halo effect, color distortion, and poor treatment of sky regions in the Dark Channel Prior(DCP) algorithm for image dehazing, a novel image dehazing algorithm using an improved DCP and strategic fusion is proposed. Based on the
Xiaoling WANG, Zhijie HU, Shuaishuai XU, Haoru HUANG
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Sandstorm images have a color cast by sand particles. Hazy images have similar features to sandstorm images due to these images having a common obtaining process. To improve hazy images, various dehazing methods are being studied.
Ho Sang Lee
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An Underwater Image Enhancement Algorithm for Environment Recognition and Robot Navigation
There are many tasks that require clear and easily recognizable images in the field of underwater robotics and marine science, such as underwater target detection and identification of robot navigation and obstacle avoidance.
Kun Xie, Wei Pan, Suxia Xu
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Pyramid Fusion Dark Channel Prior for Single Image Dehazing
In this paper, we propose the pyramid fusion dark channel prior (PF-DCP) for single image dehazing. Based on the well-known Dark Channel Prior (DCP), we introduce an easy yet effective approach PF-DCP by employing the DCP algorithm at a pyramid of multi-scale images to alleviate the problem of patch size selection.
Qiyuan Liang +2 more
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Automatic Underwater Image Enhancement using Improved Dark Channel Prior
Images taken under water are often of a monochromatic appearance, due to the physical interaction (absorption and reflection) between particles and light sources.
Marco Block +2 more
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Image Dehazing in Disproportionate Haze Distributions
Haze removal techniques employed to increase the visibility level of an image play an important role in many vision-based systems. Several traditional dark channel prior-based methods have been proposed to remove haze formation and thereby enhance the ...
Shih-Chia Huang +7 more
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Dehazing with Dark Channel Prior: Analysis and Implementation
In outdoor scenes, atmospheric absortion and scattering attenuate the radiance received by the camera and may produce haze. In 2009 He et al. proposed a simple but effective dehazing algorithm based on a hypothesis called the 'dark channel prior' (DCP). Based on this prior several other dehazing methods have been published in recent years.
Lisani, Jose-Luis, Hessel, Charles
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