It seems that with potrace installed, I can just run magick convert x.png x.svg or magick convert x.jpg x.svg.However this just returns a deformed image in black and white, and I need the svg image to be in full color. Additionally, I really need the file format to be svg because svg images are small and portable, and I don't have a lot of disk space on my server.Does anyone know how to convert png/jpeg to svg while retaining color?
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I'm using SF Symbols in buttons for a Mac App, but since I'm trying to customize their colors to better fit the theme. I'm thinking of converting the vector based file into a JPEG image.
rsvg can convert SVG to PNG.
PNG is lossless, while JPEG distorts image pixels, which also affects colors.
brew install librsvg
rsvg-convert in.svg out.png
I find there is a problem when I use inkscape convert svg to png.
I run inkscape filename.svg+xml --export-png=filename.png.
this in the contrast of svg and png.
enter image description here
How can I unify the format ,thank you!
I downloaded this svg map and used ImageMagick to convert to PNG format. However, my output PNG images don't look very well: the white borders between countries almost don't show. On the other hand, the rendered versions on the Wikimedia site look great.
Is there any option I can pass to ImageMagick to prioritize borders?
I'm converting pdf files to images with ImageMagic, everything is ok until I use -resize option, then I get image with black background. I use this command:
convert -density 400 image.pdf -resize 25% image.png
I need to use -resize option otherwise I get really large image. Is there any other option which I can use to resize image or is there option to set background in white.
That's not a Ghostscript command, You will need to find out what convert is sending to Ghostscript. As it stands I can't even be sure that your problem is with Ghostscript ,since it could easily be something that convert is doing.
Solved it by removing alpha from image, it seems imagemagic tries to apply some opacity but since jpeg doesn't allow transperency result was black background. So I found example on imagemagic website and it helped me:
convert a.pdf -background skyblue -alpha remove -alpha off a_remove.jpg
When I open a Tango SVG icon file and export it (using Inkscape) to a 16x16 png, I get a rather blurry image. Instead, the "official" 16x16 render is extremely sharp. How did they do it? Did they pixel-paint the icons at small resolutions?
Compare and for an example.
Gimp has a better scaling algorithm than Inkscape.
I Export from inkscape to 256x256 pixels and then scale to 16x16 in Gimp.