ImageMagick

How to Batch Crop Images With Imagemagick

Crop a Single Image

• We’ll start by looking at how to crop a single image using Imagemagick.
• Open a command window in the folder containing the image(s) you want to crop.
• Then open one of the images in Gimp or Photoshop to determine the x_size, y_size, x_offset, and y_offset as depicted
• Finally use convert to test 1 image and confirm your crop settings

  convert -crop x_sizexy_size+x_offset+y_offset inputfile outputfile
  
  convert -crop 1000x1000+38+278 Image.jpg CroppedImage.jpg
  

Batch Crop

Note

Now we could just loop over the images and crop, but we won’t thanks to Imagemagick’s batch processor mogrify. The command to crop a folder of images is very similar to cropping just 1.

• First make a new folder called cropped to output cropped images to.

• Next run the command as follows:

  mogrify -crop 1000x1000+38+278 -path ./cropped *.jpg
  

• That’s it, you’ve batch cropped your images.