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CLI image manipulation — convert PNG/JPG to SVG, remove watermarks, resize, crop, and edit raster images using ImageMagick and vtracer
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| name | image-tools |
| description | CLI image manipulation — convert PNG/JPG to SVG, remove watermarks, resize, crop, and edit raster images using ImageMagick and vtracer |
CLI-first image manipulation using ImageMagick (raster) and vtracer (raster-to-vector).
which magick && echo "imagemagick OK" || echo "need: brew install imagemagick" which vtracer && echo "vtracer OK" || echo "need: cargo install vtracer"
Install if missing: brew install imagemagick # raster image editing cargo install vtracer # raster-to-vector conversion (Rust)
Best for logos, icons, flat illustrations:
vtracer --input input.png --output output.svg
--colormode color
--filter_speckle 10
--color_precision 4
--corner_threshold 60
--segment_length 6
--gradient_step 32
For complex images, increase precision:
vtracer --input input.png --output output.svg
--colormode color
--filter_speckle 4
--color_precision 6
--corner_threshold 60
--segment_length 4
For line art, text, or single-color designs:
vtracer --input input.png --output output.svg --colormode bw
filter_speckle, gradient_step, decrease color_precisionsegment_length, filter_specklecolor_precision (1-8, lower = fewer colors)Paint over a region with a solid color (e.g. matching background):
magick identify input.png
magick input.png -fill "#0F0F0F" -draw "rectangle 1180,1180 1280,1280" output.png
magick input.png -resize 512x output.png
magick input.png -resize 512x512! output.png
magick input.png -resize 512x512> output.png
magick input.png -crop 500x500+0+0 output.png
magick input.png -gravity center -crop 500x500+0+0 output.png
magick input.png output.jpg magick input.jpg output.webp magick input.png -quality 85 output.jpg
magick input.png -trim +repage output.png
magick input.png -threshold 50% output.pbm
When source image has watermarks, logos, or artifacts:
magick identify input.jpg
magick input.jpg -fill "#BACKGROUND" -draw "rectangle x1,y1 x2,y2" clean.jpg
vtracer --input clean.jpg --output output.svg --colormode color
--filter_speckle 10 --color_precision 4 --corner_threshold 60
--segment_length 6 --gradient_step 32
ls -la output.svg
magick logo.png -resize 32x32 favicon-32.png magick logo.png -resize 16x16 favicon-16.png
magick logo.png -resize 256x256 -define icon:auto-resize=256,128,64,48,32,16 favicon.ico
| Task | Tool |
|---|---|
| PNG/JPG → SVG | vtracer |
| Resize, crop, format convert | magick |
| Remove watermark | magick (paint over) → then vtracer if SVG needed |
| Trim borders | magick |
| Create favicon | magick |