ImageMagick commands

ImageMagick.txt

This ImageMagick command takes all the .png files in a folder, resizes them to a maximum of 200x200px, and deposits them in the IM-processed folder:
mogrify -path IM-processed -resize 200x200 *.png

Note that the IM-processed folder must already exist.


To create a folder full of thumbnails:

mogrify -format gif -resize 125x125 -background transparent -gravity center -extent 125x125 -path thumbnails *t.*

This means: “Run the ImageMagick command mogrify. On the images I am about to send you:

• Convert each one to GIF
• Resize them (maintaining proportions) to fit into a 125x125 pixel box
• Give them a transparent background
• Keep the image centered on the canvas
• Extend the canvas to 125x125 pixels
• Place them in the ‘thumbnails’ folder

Do this on all images ending with the letter ‘t’.”

To rename *fs.* to *t.*, run this PowerShell command: 

Dir | Rename-Item –NewName { $_.name –replace "fs","t" }