1 November 1997 Edge-based adaptive smoothing
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An image diffusion method based on the adaptive smoothing approach proposed by Saint-Marc et al. (1991) is presented. We first investigate the behavior of the adaptive smoothing approach for computing simplifications of an input image, a basic problem in image analysis. Whereas the original adaptive smoothing algorithm achieves satisfactory results for 1-D signals, the unequal strength of the boundaries of images (2-D signals) poses a difficult problem. We propose the addition of an edge-strengthening step that addresses that problem. Results show significant improvements. However, this added step requires us to (1) extract a set of edge pixels and (2) obtain certain edge information (in particular, edge-side location). These tasks are interrelated, and their computation is described. In addition, the limitations of the adaptive smoothing approach are studied in depth.
Jose Vicente, Jose Vicente, Ronald W. Schafer, Ronald W. Schafer, } "Edge-based adaptive smoothing," Optical Engineering 36(11), (1 November 1997). https://doi.org/10.1117/1.601545 . Submission:

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