feat: initial commit of AI Comic Generator

backend/app/services/image_service.py

@@ -0,0 +1,30 @@
+import os
+from PIL import Image
+import io
+
+def split_comic_page(image_bytes: bytes) -> list[bytes]:
+    """Splits a 2x2 grid comic page into 4 individual panel images (bytes)."""
+    try:
+        img = Image.open(io.BytesIO(image_bytes))
+        width, height = img.size
+        mid_w = width // 2
+        mid_h = height // 2
+
+        quadrants = [
+            (0, 0, mid_w, mid_h),       # Top-Left
+            (mid_w, 0, width, mid_h),   # Top-Right
+            (0, mid_h, mid_w, height),  # Bottom-Left
+            (mid_w, mid_h, width, height) # Bottom-Right
+        ]
+
+        panels = []
+        for box in quadrants:
+            panel = img.crop(box)
+            buf = io.BytesIO()
+            panel.save(buf, format="PNG")
+            panels.append(buf.getvalue())
+            
+        return panels
+    except Exception as e:
+        print(f"Failed to split image: {e}")
+        return []