From 7395935b8f20711c2f2e356db9f43b979a446208 Mon Sep 17 00:00:00 2001
From: Ethan Dalool <git@voussoir.net>
Date: Mon, 21 Aug 2023 23:04:56 -0700
Subject: [PATCH] Add imagesequence_to_images.

---
 imagesequence_to_images.py | 41 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 imagesequence_to_images.py

diff --git a/imagesequence_to_images.py b/imagesequence_to_images.py
new file mode 100644
index 0000000..6f8ff9c
--- /dev/null
+++ b/imagesequence_to_images.py
@@ -0,0 +1,41 @@
+import argparse
+import PIL.Image
+import PIL.ImageSequence
+import sys
+
+from voussoirkit import betterhelp
+from voussoirkit import pathclass
+from voussoirkit import pipeable
+from voussoirkit import vlogging
+
+log = vlogging.getLogger(__name__, 'imagesequence_to_images')
+
+def imagesequence_to_images_argparse(args):
+    for input_file in pathclass.glob_many_files(args.input_files):
+        input_file = pathclass.Path(sys.argv[1])
+        basename = input_file.replace_extension('').basename
+        input_image = PIL.Image.open(input_file.absolute_path)
+
+        for (index, image) in enumerate(PIL.ImageSequence.Iterator(input_image)):
+            this_png = input_file.parent.with_child(f'{basename}_{index+1:04d}.png')
+            pipeable.stdout(this_png.absolute_path)
+            image.save(this_png.absolute_path)
+    return 0
+
+@vlogging.main_decorator
+def main(argv):
+    parser = argparse.ArgumentParser(
+        description='''
+        Some file formats like TIFF can contain multiple images. This program
+        extracts them to separate PNG files.
+        ''',
+    )
+    parser.add_argument(
+        'input_files',
+    )
+    parser.set_defaults(func=imagesequence_to_images_argparse)
+
+    return betterhelp.go(parser, argv)
+
+if __name__ == '__main__':
+    raise SystemExit(main(sys.argv[1:]))