I have used the Vectormagic.com
-hxck i.e. copy-pasting to get quantified and nice-looking pictures fast but doing this is too slow with overwhelming amount of pictures. My friend is mocking that this thing cannot be done quickly with offline
-tools but I feel the story is different, it probably requires some expertise to use the tools such as
bitmap-trace in Inkscape correctly.
For simplicity, suppose you have some simple comic character with 10 colors, background transparent and alpha-channel added. How can you improve the quality? Inkscape uses the term
quantification with bitmap-trace but I cannot yet understand what is actually happening under the cover when Vectormagic.com does the trick and makes the photo looking good.
Please, explain. And special plus if you can provide reproducible commands, look potrace/autotrace are commandline tools eventually.