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jdoss/convert_magick.text

Created July 24, 2015 19:54
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Make thumbnails and optimize images
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convert_magick.text
http://stackoverflow.com/questions/985725/tools-for-jpeg-optimization
http://www.imagemagick.org/script/command-line-options.php#gravity
http://superuser.com/questions/275476/square-thumbnails-with-imagemagick-convert
# Convert with focus on north gravity of image
convert -define jpeg:size=800x600 image1.jpg -thumbnail 800x600^ -gravity north -extent 800x600 image1_thumb.jpg
# Convert from the center of image
convert -define jpeg:size=800x600 image2.jpg -thumbnail 800x600^ -gravity center -extent 800x600 image2_thumb.jpg
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