Contents tagged with ImageMagick

• Using ImageMagick to make a composition of square thumbnails

  03 July 2009

  This isn't a very exciting post, but it took me ages to figure it out, so I wanted to write it down somewhere. I wanted to use a one line ImageMagick command to: Take four pictures Resize, centre and crop them to be square thumbnails Arrange them in a 2 by 2 grid Here is the command for ImageMagick on Windows: convert -size 300x300 xc:transparent -page 150x150 ( "image1.jpg" -gravity center -resize 150x150^^ -extent 150x150 ) -page 150x150 ( "image2.jpg" -gravity center -resize 150x150^^ -extent 150x150 -repage +0+150 ) -page 150x150 ( "image3.jpg" -gravity center -resize 150x150^^ -extent … more