gmic

Open-source framework for image processing and manipulation

brewmacoslinux

Try with needOr install directly

About

Full-Featured Open-Source Framework for Image Processing

gmic

Resize an image to 800x600 pixels$ gmic input.jpg -resize 800,600 -output output.jpg

Apply a blur filter with radius 5 to an image$ gmic input.jpg -blur 5 -output blurred.jpg

Convert image to grayscale and increase contrast$ gmic input.jpg -gray -normalize -output result.jpg