An #ImageMagick recipe I use over an over is to remove the background of an image from two versions of the image: one with white background and another with dark background

magick light.png dark.png -alpha off ^( -clone 0,1 -compose difference -composite -separate -evaluate-sequence max -auto-level -negate ^) ^( -clone 0,2 -fx "v==0?0:u/v-u.p{0,0}/v+u.p{0,0}" ^) -delete 0,1 +swap -compose Copy_Opacity -composite no-background.png

I ImageMagick

P.S. Recipe found at https://usage.imagemagick.org/masking/#two_background

Ivre, il découvre, après vingt-cinq ans d'utilisation de ce programme, que 'convert +append' concatène horizontalement les images et 'convert -append' concatène verticalement.

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #redis #imagemagick #troubleshooting

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #redis #imagemagick #troubleshooting

Split a multi-image TIFF file into separate images two ways: with #ImageMagick and with #Python.

https://shallowsky.com/blog/linux/split-tiff.html

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #troubleshooting #redis #imagemagick

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #imagemagick #troubleshooting #redis

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #troubleshooting #imagemagick #redis

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #redis #imagemagick #troubleshooting

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t break ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #troubleshooting #imagemagick

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t break ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.raddemo.host #troubleshooting #imagemagick

(Solved) How to Fix #PHP Warning: Module ‘imagick’ already loaded Error

This article provides a guide for how to fix PHP Warning: Module 'imagick' already loaded errors.
How to Fix PHP Warning: Module 'imagick' already loaded Error
When PHP encounters this warning, it means that the Imagick extension is being loaded more than once in your configuration files. While the warning itself usually won’t break ...
Continued https://blog.radwebhosting.com/how-to-fix-php-warning-module-imagick-already-loaded/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #troubleshooting #imagemagick

Once again, friendly reminder that #ImageMagick, much like #ffmpeg, is not trivial:

convert -density 1600 -resize 1024 in.svg out.png
vs
convert in.svg -density 1600 -resize 1024 out.png

give different results. The latter is blurry.
As a rule of thumb, put the scaling arguments first. You're welcome.

Cómo optimizo imágenes sin usar editores de imágenes #imagemagick

https://danisanchez.net/como-optimizo-imagenes-sin-usar-editores-de-imagenes/