Color image sharpening inspired by human vision models.

@article{Milln2006ColorIS,
  title={Color image sharpening inspired by human vision models.},
  author={Mar{\'i}a S. Mill{\'a}n and Edison Valencia},
  journal={Applied optics},
  year={2006},
  volume={45 29},
  pages={7684-97}
}
A method to sharpen digital color images that takes viewing conditions and human vision models into consideration is described. The method combines the Laplacian of Gaussian (LoG) operator with spatial filters that approximate the contrast sensitivity functions of human visual systems. The sharpening operation is introduced in the opponent color space, following the scheme proposed in the spatial extension of CIELAB (S-CIELAB). We deduce the modification of the original image necessary to… CONTINUE READING