Large surfaces have gradients as the basis. Shadings in the mouth, blue ring and eyes are blurred shapes and curves. An example:īasic outlines were drawn on the original PNG image (= left). If you can accept some inaccuracy, you can crunch together something resembling quite easily. The complex part is the coloring, basic outlines are simple. That's not easy because the image is complex. To get a sharp freely scalable vector you must redraw it. The tracing result can be acceptable only in a small size where antialiasing partially blurs the borders between the colors. Your attempt has no possiblities to be succesfull, if you want a sharp freely scalable vector. 256 discrete color palette isn't a proper replacement. Unfortunately tracing is not smart enough to detect gradient parameters. Is this an Inkscape issue? Or perhaps a quick fix in inkscape to make the final trace look like the preview? I'm not sure, but it seems like I'm missing something obvious.įinal trace result: link (please download first and open in your browser, the drive preview isn't accurate) And yes, the preview is actually of the final trace, I checked this by adjusting other settings and yes, the preview changes as it should. The thing is, the preview looks fine and has the smooth and continuous color gradients, unlike the final trace. Notice how the preview looks perfectly fine, but the final result has these outline artifacts, interrupting the smooth and continuous color gradients. I imported this into Inkscape 0.92 (on Ubuntu 18.04) and used Path -> Trace Bitmap on the imported raster image object. The source file is a 160x160 bitmap of the smiling face with halo emoji, Apple's version. This seems quite similar to How to get rid of these outline artifacts in an Inkscape SVG trace? but I thought asking again would be helpful since it seems that at least the preview does not have the issue.
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