I need to scale a bunch of 32px or 32px Icons/Images .png to 21px and maybe 16px.
My results end every time with fine artefacts or blur, but scaling from 64px or 32px with "web browser" on the fly via CSS/HTML it gets extremely clean.
I tried everything, best result i get when vectorizing with illustrator, but nothing is as clean, as scaling with CSS/HTML.
On the attached picture you can see on the Bottom the CSS scaled Icon and on top you can see scaled with Photoshop export.
I want you to explain me how to clean down scale images from 64px or 32px to 21px an 16px.