MSX2+ SCREEN 12 image conversion is hard. But I took yet another stab at it. Here are some previews.
Left a traditional approach. Right my new luminance-aware brute force method. These are the same resolution, and exactly the same number of bytes!
Actually, the tool supports interlace as well, and YAE (SCREEN 10) and RGB (SCREEN 8)!
Soon to be released as open source.
(Originals from https://www.pexels.com/@mccutcheon/)

