Abstract
Blind noisy image estimation is useful in many visual processing systems. The challenge lies in accurately estimating the image noise level without any priori information of the image. To tackle this challenge, an iterative texture-based eigenvalue analysis approach is proposed in this paper. The proposed approach utilizes the eigenvalue analysis to mathematically derive a new noise level estimator based on weak-textured image patches. Furthermore, a new texture strength measure is proposed to adaptively select weak-textured patches from the noisy image. Experimental results are provided to demonstrate that the proposed image noise level estimation approach yields superior accuracy and stability performance to that of conventional noise level estimation approaches, so that to improve the performance of image denoising algorithm.
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Acknowledgements
This work was supported by National Natural Science Foundation of China (No. 61105010, 61375017), Program for Outstanding Young Science and Technology Innovation Teams in Higher Education Institutions of Hubei Province, China (No. T201202).
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Huang, X., Chen, L., Tian, J. et al. Blind image noise level estimation using texture-based eigenvalue analysis. Multimed Tools Appl 75, 2713–2724 (2016). https://doi.org/10.1007/s11042-015-2452-5
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DOI: https://doi.org/10.1007/s11042-015-2452-5