Find images recursively, copy, rename, and resize?

How can I find images recursively and copy them into their own directories with new names? For example:

folder
- subfolder1
   - a.jpg
- subfolder2
   - b.jpg
- subfolder3
   - c.jpg

So I can get:

folder
- subfolder1
   - a.jpg
   - a-copy.jpg
- subfolder2
   - b.jpg
   - b-copy.jpg
- subfolder3
   - c.jpg
   - c-copy.jpg

Ideally, I would like to resize the copied images to 50px width max (smaller than the original ones).

Any ideas?

Asked By: Run

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Source

First check with echo included as follows (run from within the parent directory containing the folder directory or alternatively provide /full/path/to/folder/*/*.jpg below):

for f in folder/*/*.jpg
  do
    echo convert -geometry 50x "$f" "${f%.*}-copy${f//*./.}"
    done

… and if satisfied with the naming output, remove echo and run it again as follows:

for f in folder/*/*.jpg
  do
    convert -geometry 50x "$f" "${f%.*}-copy${f//*./.}"
    done

… to do the actual resizing.

To include other file extensions (Case Sensitive), add them in a brace expansion like folder/*/*.{jpg,JPG,png,PNG} etc.

Notice for image resizing, you’ll need convert on your system … Also, notice the above convert -geometry 50x ... line will enlarge images with width less than 50 and you might want to consider expanding it or using e.g. convert -resize 20% ... instead.

Answered By: Raffa