A three-step restoration method was used:
- Pre-processing:Photoshop the original image before uploading.Gaussian blur (radius 2px)Soften Sharp Edges
- Parameter Adjustment:In the tool set the pixel size to 1/20th of the original image's length and width (e.g. use 50×50 pixels for a 1000px image)
- Swatch Control:Choose a palette that includes midtones (e.g. "DB32″) to avoid jaggies caused by high-contrast color blocks.
In special cases, it can be exported and then used in specialized tools such as Aseprite'santialiasing brushManually retouch key contour lines.
This answer comes from the articlePixel Art Generator: Free online tool to convert images or text to pixel artThe