Thursday, September 10, 2009

Here are results based on the fixed circle mask and normalization

Problems:
1. Still clear patterns
2. The dark areas are too light and the white areas have too many pixels chosen.
3. Clumping






The radius of the mask is 3.
Ci is the contrast.
The chosen function is as follows.

maxin = max(0.5,((1-Ci)*I0 * (pow(Ii,0.4f)/(pow(255,0.4f))))/(3*r));
detI = min(maxin, 255-Ii);

1 comment:

  1. What does "size is 3" mean? Radius or diameter? I would go with a radius of 3, and also try radius 5.

    There are still lots of lattice effects, suggesting that the discretization is causing problems, which in turn suggests that the mask is either too small or that its boundary conditions have big discontinuities.

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