need to commit more

split_dukes.py

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+"""
+Run-once script to split dukes.jpg and dukes_expansion.jpg into individual card images.
+Card cell size is derived from image dimensions / grid, starting from the top-left corner.
+"""
+
+from pathlib import Path
+from PIL import Image
+
+TRIM = 2
+
+SOURCES = [
+    ("images/dukes.jpg",           "images/dukes", 10, 3),
+    ("images/dukes_expansion.jpg", "images/dukes", 4,  2),
+]
+
+for source_path, out_dir_path, cols, rows in SOURCES:
+    source  = Path(source_path)
+    out_dir = Path(out_dir_path)
+    out_dir.mkdir(parents=True, exist_ok=True)
+
+    img = Image.open(source)
+    W, H = img.size
+    cell_w = W / cols
+    cell_h = H / rows
+    print(f"{source.name}: {W}x{H}px  →  cell {cell_w:.1f}x{cell_h:.1f}px  ({cols}x{rows} grid)")
+
+    for row in range(rows):
+        for col in range(cols):
+            left   = round(col * cell_w)
+            top    = round(row * cell_h)
+            right  = round((col + 1) * cell_w)
+            bottom = round((row + 1) * cell_h)
+
+            card = img.crop((left, top, right, bottom))
+            card = card.crop((TRIM, TRIM, card.width - TRIM, card.height - TRIM))
+
+            name = f"duke_r{row+1:02d}c{col+1:02d}.jpg"
+            out_path = out_dir / name
+            if out_path.exists():
+                stem, suffix = name.rsplit(".", 1)
+                name = f"{stem}_exp.{suffix}"
+            card.save(out_dir / name, quality=90)
+
+    print(f"  → saved to {out_dir}/")