diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index ef387c7..519047f 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
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@@ -46,6 +80,20 @@
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+        <entry file="file://$PROJECT_DIR$/introduction/face_reco_two_people_in_database.png">
+          <provider selected="true" editor-type-id="images" />
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       <file pinned="false" current-in-tab="true">
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@@ -54,7 +102,7 @@
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@@ -74,9 +122,9 @@
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       <pane id="ProjectPane">
         <subPane>
           <expand>
@@ -107,6 +154,7 @@
           <select />
         </subPane>
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   </component>
   <component name="RunDashboard">
@@ -121,12 +169,89 @@
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+  <component name="RunManager" selected="Python.face_reco_from_camera">
+    <configuration name="face_reco_from_camera" type="PythonConfigurationType" factoryName="Python" temporary="true">
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+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
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+      <option name="IS_MODULE_SDK" value="true" />
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+      <method v="2" />
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+      <module name="Dlib_face_recognition_from_camera" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <envs>
+        <env name="PYTHONUNBUFFERED" value="1" />
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+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <option name="IS_MODULE_SDK" value="true" />
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+    <list>
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+      <item itemvalue="Python.face_reco_from_camera" />
+    </list>
+    <recent_temporary>
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+        <item itemvalue="Python.face_reco_from_camera" />
+        <item itemvalue="Python.get_features_into_CSV" />
+        <item itemvalue="Python.get_faces_from_camera" />
+      </list>
+    </recent_temporary>
+  </component>
   <component name="SvnConfiguration">
     <configuration />
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   <component name="TaskManager">
     <task active="true" id="Default" summary="Default task">
-      <changelist id="39c25e36-24e3-48b8-a41f-0d53e408e855" name="Default" comment="" />
+      <changelist id="e58b655a-3a9b-4001-b4da-39e07ab46629" name="Default Changelist" comment="" />
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@@ -135,21 +260,21 @@
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@@ -157,6 +282,9 @@
       <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
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   <component name="XDebuggerManager">
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     <entry file="file://$PROJECT_DIR$/test.py" />
     <entry file="file://$PROJECT_DIR$/data/features_all.csv" />
+    <entry file="file://$PROJECT_DIR$/introduction/face_reco_single_person_custmize_name.png" />
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@@ -203,22 +342,12 @@
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-    <entry file="file://$PROJECT_DIR$/introduction/face_reco_single_person_custmize_name.png">
+    <entry file="file://$PROJECT_DIR$/introduction/face_reco_two_people_in_database.png">
       <provider selected="true" editor-type-id="images" />
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     <entry file="file://$PROJECT_DIR$/README.rst">
diff --git a/README.rst b/README.rst
index d490c7e..1c430e6 100644
--- a/README.rst
+++ b/README.rst
@@ -29,10 +29,17 @@ Detect and recognize single/multi-faces from camera;
       :align: center
 
    当多张人脸 / When multi-faces:
-   
+
+   一张已录入人脸 + 未录入 unknown 人脸:
+
    .. image:: introduction/face_reco_two_people.png
       :align: center
 
+   同时识别多张已录入人脸:
+
+   .. image:: introduction/face_reco_two_people_in_database.png
+      :align: center
+
 ** 关于精度 / About accuracy:
 
 * When using a distance threshold of ``0.6``, the dlib model obtains an accuracy of ``99.38%`` on the standard LFW face recognition benchmark.
diff --git a/introduction/face_reco_two_people_in_database.png b/introduction/face_reco_two_people_in_database.png
new file mode 100644
index 0000000..4a8222e
Binary files /dev/null and b/introduction/face_reco_two_people_in_database.png differ