Thank you for this study Aurélien
As far as I understand, TV and Laplacians are complementary as they detect
noise in different regions of the image (noise in sharp edge for Laplacian,
noise elsewhere for TV).
Though, I do not understand why you multiply the TV and Laplacian results
to get the mas
You're welcome ;-)
That's true : the multiplication is equivalent to an "AND" operation,
the resulting mask has non-zero values where both TV AND Laplacian masks
has non-zero values, which - from my tests - is where the real noise is.
That is because TV alone is too sensitive : when the image is
