diff --git a/active_plugins/filterobjects_stringmatch.py b/active_plugins/filterobjects_stringmatch.py
index 8714e77..9634380 100644
--- a/active_plugins/filterobjects_stringmatch.py
+++ b/active_plugins/filterobjects_stringmatch.py
@@ -3,6 +3,7 @@
     Divider,
 )
 from cellprofiler_core.setting.text import Alphanumeric
+from cellprofiler_core.setting.choice import Choice
 
 __doc__ = ""
 
@@ -19,6 +20,8 @@
 
 LOGGER = logging.getLogger(__name__)
 
+METHOD_EXACT = "Exact match"
+METHOD_CONTAINS = "String contains"
 
 class FilterObjects_StringMatch(ObjectProcessing):
     module_name = "FilterObjects_StringMatch"
@@ -46,20 +49,32 @@ def create_settings(self):
         self.filter_out = Alphanumeric(
             "What string to filter out",
             "AAAA",
-            doc="""Enter a name for the measurement calculated by this module.""",
+            doc="""Enter the string that should be used to filter objects.""",
         )
 
+        self.filter_method = Choice(
+            "Filter method",
+            [METHOD_EXACT, METHOD_CONTAINS],
+            doc="""Select whether to only filter objects that are an exact match for the string entered
+            (e.g. Object 'AAAAB' will NOT be filtered by string 'AAAA') 
+             or to filter any object that contains the string entered
+             (e.g. Object 'AAAAB' will be filtered by string 'AAAA').""",
+        )
+
+        #self.filter_column = 
+
         self.rules.create_settings()
 
     def settings(self):
         settings = super(FilterObjects_StringMatch, self).settings()
-        settings += [self.filter_out]
+        settings += [self.filter_out,self.filter_method]
         return settings
 
     def visible_settings(self):
         visible_settings = super(FilterObjects_StringMatch, self).visible_settings()
         visible_settings += [
-                self.filter_out
+                self.filter_out,
+                self.filter_method
             ]
         return visible_settings              
 
@@ -165,12 +180,15 @@ def keep_by_string(self, workspace, src_objects):
         src_name = self.x_name.value
         m = workspace.measurements
         values = m.get_current_measurement(src_name, "Barcode_BarcodeCalled")
-        # Is this structure still necessary or is it an artifact?
-        # Could be just values == self.filter_out.value
-        # Make an array of True
-        hits = numpy.ones(len(values), bool)
-        # Fill with False for those where we want to filter out
-        hits[values == self.filter_out.value] = False
+        if self.filter_method == METHOD_EXACT:
+            # Is this structure still necessary or is it an artifact?
+            # Could be just values == self.filter_out.value
+            # Make an array of True
+            hits = numpy.ones(len(values), bool)
+            # Fill with False for those where we want to filter out
+            hits[values == self.filter_out.value] = False
+        elif self.filter_method == METHOD_CONTAINS:
+            hits = [self.filter_out.value in x for x in values]
         # Get object numbers for things that are True
         indexes = numpy.argwhere(hits)[:, 0]
         # Objects are 1 counted, Python is 0 counted