Edge Detection Error in the Discrete Laplacian of Gaussian

@inproceedings{Gunn1998EdgeDE,
  title={Edge Detection Error in the Discrete Laplacian of Gaussian},
  author={Steve R. Gunn},
  booktitle={ICIP},
  year={1998}
}
This paper addresses the problem of determining suitable mask values and sizes for the discrete implementation of the Laplacian of Gaussian edge operator. This is achieved by providing a theoretical connection between the mask size and the edge detection error introduced by truncation of the operator. Additionally, the importance of introducing a bias correction within the finite approximation is developed. Experimental results are shown to confirm the theoretical predictions. 

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Kamlé. A discrete expression of canny’s criteria for step edge detector performance evaluation

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