Linux resize image

convert -resize 50% myfigure.png myfigure.jpg

Source: askubuntu.com

Resize image linux command line

# first install imagemagick
#check image size
identify -format "%wx%h" image.jpg

# single image 
convert image.jpg -resize 600x400\> image.jpg
convert  -resize 20% source.png dest.jpg

# batch resize by percentage
for i in $( ls *.jpg); do convert -resize 50% $i re_$i; done

# batch resize and change format
for i in $( ls *.jpg); do convert -resize 50% $i $i.gif; done

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