MixAQ:
MixAQ mixes VAQ and Halli's AQ. In a word, MixAQ is -VAQ +HAQ. My understanding of VAQ is that VAQ allocates bits more to flat area and less to changeful area. But that is when --aq-strength has a positive value. If the negative value is possible for --aq-strength? Seraphy tried it and then saw VAQ with negative values allocated bits less to flat area and more to changeful area. That is good to encode animes. And what is more, worried for execive cut-down and allocating shortage, he added Haali's AQ for support. Finally, MixAQ makes -VAQ allow HAQ to allocate bits more to bright blue area and dark area. To use MixAQ, set --aq2-strength and --aq2-sensitivity for HAQ in addition. It's possible to use only VAQ by setting --aq2-strength 0.
OreAQ:
OreAQ is also a arranged mod from VAQ and HAQ, but is different from MixAQ ("Ore" means "I" in Japanese.) OreAQ is focused on luma and chroma, especially on the former. OreAQ classifies MBs into 4 types: Bright, Middle, Dark, M.Dark (maybe stand for Mega-Dark). OreAQ tends to lower or keep QPs with middle luma to protect gradations. About the others, it lowers QPs only when necessary and basically raises QPs. That is because color noises stand out rather than gradations in areas of high and low lumas. Chroma values are used for diciding whether QPs need to lower or not. The luma of M.Dark MB is near or at zero, so we can hardly see anything there even if there is any color noise. Thus, OreAQ raises QPs at M.Dark MBs. OreAQ is good to encode animes, and more bit-economical than MixAQ maybe.
看起来 很不错的样子
不过从上次实测的帖子看来 似乎...
