Abstract
Perona–Malik diffusion is a well-known type of nonlinear diffusion that can be used for image segmentation and denoising. The process itself needs an parameter k to decide which edges will be retained and which can be blurred and a stopping time t S . Although there have been investigations on how to set these parameters, especially for regularized diffusion models, as well as different criteria for the optimal stopping time have been suggested, there is yet no quick and conclusive way to estimate both parameters – or to reduce the search space at least. In this paper, we show that Gaussian noise characteristics of an image and the diffusion parameters for an optimal optical result can be estimated based on the image histogram. We demonstrate the effectiveness of lazy learning in this area and develop a custom feature weighting algorithm.
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Keywords
- Nonlinear Diffusion
- Average Absolute Error
- Lazy Learning
- Estimate Noise Variance
- Nonlinear Anisotropic Diffusion
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Thuerck, D., Kuijper, A. (2013). Lazy Nonlinear Diffusion Parameter Estimation. In: Petrosino, A. (eds) Image Analysis and Processing – ICIAP 2013. ICIAP 2013. Lecture Notes in Computer Science, vol 8156. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-41181-6_22
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DOI: https://doi.org/10.1007/978-3-642-41181-6_22
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