(02-19-2019, 10:35 AM)Hackerman Wrote: I want to apply AA to a raster image that doesn't look good with 1px AA! I need more AA! 1pixel AA is unheard of (unless the image has dimensions less than 10 pixels). If you search "png" online, it is rather unlikely that you will find an image with no AA or 1px AA. I have never seen an image with 1px AA.Show me where you see more than 1px AA in this image:
(02-19-2019, 10:35 AM)Hackerman Wrote: I have a random raster aliased image. Is there any way to apply AA larger than 1px or not? I want a single-word answer please.
No. You can have blurred edges, but this is no longer AA. AA is the frontier between pixels that have the subject color and the pixels that have the background color. In an ideal world, with infinite resolution, this frontier is infinitely small. Since we have to deal with real life pixels there are only 3 possibles cases:
- The pixel is completely inside the border: it assumes the color of the subject
- The pixel it completely outside the border: it assumes the color of the background
- The pixel is straddling the border(*): it assumes a color which is the blend of the two colors, more or less proportionally to the respective areas inside and outside the border for the pixel.
This is a zoom of the image above with the path that is the "border". Notice that all pixels that aren't full white or full black are straddling the border.