diff --git a/phototag/cli.py b/phototag/cli.py
index ed0509c..21395f7 100644
--- a/phototag/cli.py
+++ b/phototag/cli.py
@@ -15,7 +15,7 @@ from google.cloud import vision
 from rich.progress import Progress, BarColumn
 
 from phototag import config, TEMP_PATH
-from phototag.helpers import select_files, convert_to_bytes, walk
+from phototag.helpers import select_files, convert_to_bytes, walk, path_to_match_mode
 from phototag.process import MasterFileProcessor
 
 logger = logging.getLogger(__name__)
@@ -46,7 +46,7 @@ def cli():
 @click.option('-t', '--test', is_flag=True,
               help='Don\'t actually query the Vision API, just generate fake tags for testing purposes.')
 def run(files: Tuple[str], all: bool = False, regex: str = None, recursive: bool = None, depth: int = None,
-        glob_pattern: str = None,
+        glob_pattern: str = None, regex_mode: str = None,
         max_threads: int = None,
         max_buffer: str = None, forget: bool = False, overwrite: bool = False, dry_run: bool = False,
         test: bool = False):
@@ -76,7 +76,8 @@ def run(files: Tuple[str], all: bool = False, regex: str = None, recursive: bool
     if regex:
         logger.debug('Applying RegEx pattern: {}'.format(regex))
         compiled_regex = re.compile(regex)
-        files = [file for file in files if compiled_regex.match(file)]
+        files = [file for file in files if
+                 compiled_regex.match(path_to_match_mode(file, regex_mode, root=cwd))]
 
     if len(files) < 1:
         logger.error('No files selected for processing. Cannot proceed.')
diff --git a/phototag/helpers.py b/phototag/helpers.py
index f7663d1..7d6061b 100644
--- a/phototag/helpers.py
+++ b/phototag/helpers.py
@@ -121,6 +121,24 @@ def walk(root: Path, current: Optional[Path] = None, depth: Optional[int] = None
             yield from walk(root, current=item, depth=depth)
 
 
+def path_to_match_mode(path: Path, match_mode: str, root: Optional[Path] = None) -> str:
+    """
+    Converts a path to a string based on the match mode.
+    :param path: The path to convert
+    :param match_mode: The match mode to use
+    :param root: The relative directory to use for 'relative' match mode. Defaults to the current working directory.
+    """
+    root = root or Path.cwd()
+    if match_mode == "relative":
+        return str(path.relative_to(root or Path.cwd()))
+    elif match_mode == "absolute":
+        return str(path.resolve())
+    elif match_mode == "filename":
+        return path.name
+    else:
+        raise ValueError(f"Invalid match mode: {match_mode}")
+
+
 def select_files(files: List[str], regex: Optional[str], glob_pattern: Optional[str]) -> List[str]:
     """
     Helper function for selecting files in the CWD (or subdirectories, via Glob) and filtering them.