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pi.ino

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    • image.html 1.00 KiB 
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<a href=../project_management/ender3v3.png>PNG</a> (uncompressed, e.g. 89 MB) vs <a href=../project_management/ender3v3.jpg>JPG</a> (compressed, e.g. 184 kB)

<a href=https://www.gimp.org>GIMP</a>
   <a href=https://www.gimp.org/tutorials/GIMP_Quickies/#changing-the-size-filesize-of-a-jpeg>compress</a>
   <a href=https://www.gimp.org/tutorials/GIMP_Quickies/#changing-the-size-dimensions-of-an-image-scale>resize</a>
   <a href=https://alessandrofrancesconi.it/projects/bimp>batch</a>

<a href=https://imagemagick.org>ImageMagick</a>
   list formats:
      convert -list format
   convert PNG to JPG:
      convert input.png output.jpg
   convert all PNGs to JPGs: 
      mogrify -format jpg *.png
   convert SVG to PNG at 1000 DPI:
      convert -density 1000 -units PixelsPerInch input.svg output.png
   compress JPG to quality 50% width 1000:
      convert input.jpg -quality 50% -resize 1000 output.jpg
   compress all JPGs to quality 50% width 1000:
      mogrify -quality 50% -resize 1000 *.jpg