DeHalo_alpha() actually lightens the source. It is Tweak() that pulls it back down again …
Right, … Although an interpolation still remains?
Yes. There isn’t any correction that can be made within DeHalo_alpha(). Tweak() or another function must do it.
Several people have stated that they noticed a green shift in V15 (see Page 15,
My guess is the color shift is compounded from all those ConvertTo’s.
by the way: Are we not able to directly link to posts here?!).
We can. It’s clunky, but you click on the poster’s name and up comes ALL his posts. One must wade through them (by date is a must) to come to the isolated post with link directly to it. Then use markdown-it format to make a referring link in one’s post.
DrDre already tried to keep conversions to a minimum as … he also resolved a problem that came from colorspace conversions. … Why don’t all plugins even support one “standard” colorspace like RGB32?
It’s the history of Avisynth. Processing some colorspaces were easier to figure out and faster to execute than others. Later, they started work on other well used colorspaces. By then, many had already written their plug-ins for the earlier colorspaces and moved on. So it a hodge-podge of timing and missed opportunities and lost interest.
Now that computers are fast enough, Avisynth can/should be re-written from the ground up in an “uncompressed” colorspace. (Easy for me to say.) Oh, wait, aren’t they doing something like that now? (The system I use is NOT up to date. So I’m not keeping watch on development.)