refactor YOLO crop model

src/utils.py

@@ -32,14 +32,7 @@ def get_image_files(directory: Path) -> List[Path]:
             image_files.extend(directory.glob(f"*{ext.upper()}"))
     return sorted(image_files)
 
-def validate_image(image_path: Path) -> bool:
-    """Validate if file is a valid image"""
-    try:
-        with Image.open(image_path) as img:
-            img.verify()
-        return True
-    except Exception:
-        return False
+
 
 def load_image(image_path: Path, target_size: Tuple[int, int] = None) -> Optional[np.ndarray]:
     """Load and resize image"""
@@ -83,9 +76,7 @@ def create_augmented_filename(original_path: Path, index: int, suffix: str = "au
     suffix = f"_{suffix}_{index:02d}"
     return original_path.parent / f"{stem}{suffix}{original_path.suffix}"
 
-def get_file_size_mb(file_path: Path) -> float:
-    """Get file size in MB"""
-    return file_path.stat().st_size / (1024 * 1024)
+
 
 def print_progress(current: int, total: int, prefix: str = "Progress"):
     """Print progress bar"""