FastLineDarken (version 1.3) is a really nice filter, but at high strengths it becomes kind of 'blotchy'.
Strength at 255, luma cap at 255 -- note the glasses and the line of the kid's right shoulder
The undarkened image
Strength at 55, luma cap at 255 -- this is the setting I've been using.
The original, after deinterlacing and resizing
What I'm after is either another filter that will darken the lines more evenly, or a way to tweak this one so that the darkening isn't so variable.
