For a local enhancement using mean and variance, there is one condition: σs(x, y) ≤ k2DG, where, MDG is global standard deviation, k2 a positive constant and σs(x, y) a measure of contrast at point (x, y). Then, which fact is true for k2 if its values is greater than 1.0?

Question

For a local enhancement using mean and variance, there is one condition:

Answer 1

The condition for a local enhancement using mean and variance is that the local variance must be lower than a specified threshold. This ensures that the area has relatively low contrast or detail, making it ideal for enhancement processes to improve visibility or contrast within that region.