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image optimisation tips to git.[de,uk] 

Signed-off-by: Riku Viitanen <riku.viitanen@protonmail.com>
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Riku Viitanen 2023-07-26 14:37:12 +03:00
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24
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@ -124,6 +124,30 @@ dem `lbwww-img` Repository hinzu, indem Du diese dann jeweils mit diesem Link ve
<https://av.libreboot.org/path/to/your/new/image/in/lbwww-img>.
Wenn dein Patch der Libreboot Webseite hinzugefügt wird, werden erscheinen deine Bilder live.
If adding a photo, compress it for web distribution. Images should be about
800px wide, and usually under 100KiB in size:
First, scale your image down to approximately 800px width, using your favourite
image manipulation program. For example, with `imagemagick` you can do the
following (make sure the image isn't already smaller or equal than preferred).
convert original.jpg -resize 600000@ -quality 70% web.jpg
You should always run `jpegoptim` on jpg images before submitting them.
It strips useless metadata and *losslessly* optimises them further by cleverly
rearranging the huffman tables used in them.
jpegoptim -s --all-progressive web.jpg
If the image is a (line) drawing, vector graphics are preferable to bitmaps.
Therefore, if possible, save them as SVGs. Those are easy to modify,
and will surely make translators' work easier as well.
PNG images should be optimised with `zopfli` (this is lossless as well).
For example, this reduced the Libreboot boot logo from around 11k to 3k:
zopflipng -ym image.png image.png
Zu Entwicklungszwecken, könntest Du deine Bilder auch lokal verknüpfen, und
anschliesend die URLs anpassen sobald Du deine Patches für die Dokumentation/Webseite schickst.

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site/git.uk.md
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@ -114,6 +114,30 @@ Untitled.
<https://av.libreboot.org/шлях/до/вашого/нового/зображення/в/lbwww-img> для кожного з них.
Коли його буде поєднано на веб-сайті libreboot, ваші зображення з'являться в реальному часі.
If adding a photo, compress it for web distribution. Images should be about
800px wide, and usually under 100KiB in size:
First, scale your image down to approximately 800px width, using your favourite
image manipulation program. For example, with `imagemagick` you can do the
following (make sure the image isn't already smaller or equal than preferred).
convert original.jpg -resize 600000@ -quality 70% web.jpg
You should always run `jpegoptim` on jpg images before submitting them.
It strips useless metadata and *losslessly* optimises them further by cleverly
rearranging the huffman tables used in them.
jpegoptim -s --all-progressive web.jpg
If the image is a (line) drawing, vector graphics are preferable to bitmaps.
Therefore, if possible, save them as SVGs. Those are easy to modify,
and will surely make translators' work easier as well.
PNG images should be optimised with `zopfli` (this is lossless as well).
For example, this reduced the Libreboot boot logo from around 11k to 3k:
zopflipng -ym image.png image.png
Для цілей розробки ви можете спочатку створити локальні посилання на зображення, а
потім налаштувати URL-адреси, коли надсилатимете документацію/патчі веб-сайту.