feat: support multiple color correction inputs

image-color-correction/warm_print.py

@@ -10,7 +10,7 @@
 Apply a warm print color correction (less blue, slightly yellower).
 
 Usage with uv (no venv, no uv pip):
-    uv run warm_print.py /path/to/image.jpg
+    uv run warm_print.py image.jpg other.jpg /path/to/more.jpg
 
 uv reads the dependencies in the header above and installs them
 into an isolated cache on first run.
@@ -83,17 +83,8 @@ def warm_correct(im: Image.Image) -> Image.Image:
     return out_im
 
 
-def main() -> int:
-    if len(sys.argv) < 2:
-        print("Usage: python warm_print.py /path/to/image.jpg", file=sys.stderr)
-        return 2
-
-    src = Path(sys.argv[1]).expanduser().resolve()
-    if not src.is_file():
-        print(f"Not a file: {src}", file=sys.stderr)
-        return 1
-
-    # Same folder, same name, short suffix before the original extension.
+def process_one(src: Path) -> Path:
+    """Color-correct one image and write sibling *_warmprint file."""
     dest = src.with_name(f"{src.stem}_warmprint{src.suffix}")
 
     im = Image.open(src)
@@ -112,8 +103,27 @@ def main() -> int:
         out_im.save(dest, "JPEG", **save_kwargs)
     else:
         out_im.save(dest, "PNG", **save_kwargs)
-    print(dest)
-    return 0
+    return dest
+
+
+def main() -> int:
+    if len(sys.argv) < 2:
+        print(
+            "Usage: python warm_print.py image.jpg [more.jpg ...]",
+            file=sys.stderr,
+        )
+        return 2
+
+    failed = 0
+    for raw in sys.argv[1:]:
+        src = Path(raw).expanduser().resolve()
+        if not src.is_file():
+            print(f"Not a file: {src}", file=sys.stderr)
+            failed += 1
+            continue
+        dest = process_one(src)
+        print(dest)
+    return 1 if failed else 0
 
 
 if __name__ == "__main__":